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Crepe myrtle play
Crepe myrtle
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Crepe myrtle
Crepe myrtle
Crepe myrtle
Crepe myrtle
Crepe myrtle
Lagerstroemia indica
Also known as : Indian crape myrtle
Water
Water
Every 1-2 weeks
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Sunlight
Sunlight
Full sun
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care guide

Care Guide for Crepe myrtle

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Watering Care
Watering Care
Details on Watering Care Watering Care
Fertilizing Care
Fertilizing Care
Details on Fertilizing Care Fertilizing Care
Pruning
Pruning
Trim the diseased, withered leaves once a month.
Details on Pruning Pruning
Soil Care
Soil Care
Sand, Loam, Chalky, Clay, Acidic, Neutral, Alkaline
Details on Soil Care Soil Care
Repotting
Repotting
Should be repotted every 2-3 years in a large pot (2-3 times the size of the rootball), with good drainage holes.
Details on Repotting Repotting
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Crepe myrtle
Water
Water
Every 1-2 weeks
Sunlight
Sunlight
Full sun
Hardiness Zones
Hardiness Zones
6 to 10
Planting Time
Planting Time
Spring, Early summer, Fall, Early winter
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Questions About Crepe myrtle

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What's the best method to water my Crepe myrtle?
You might want to put a garden hose at the plant base to ensure that you're promoting excellent root development. Avoid directly spraying the leaves, and know that the leaves will require more watering if they are outdoors and facing direct sunlight. You can also use bubblers that you can put on to each plant to moisten the roots. Also, use soaker hoses that can cover the entire garden or bed when adding or removing plants to push the roots deeply. Drain any excess water and wait for the soil to dry before watering. Water at ground level to prevent diseases. On a sunny day, you might want to spray the entire bush with water. Whether potted or in-ground, please remember Crepe myrtle prefers deep watering over light sprinkling.
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What should I do if I water Crepe myrtle too much/too little?
An overwatered Crepe myrtle can start to have leaves that turn yellow, drop off and wilt. The plant can also look dull and unhealthy, with signs of mushy stems. When they are beginning to show these signs, it's best to adjust your schedule whenever possible. The wilting can also be a sign of under watering as well. You might see that the leaves begin to turn crispy and dry while the overwatered ones will have soft wilted leaves. Check the soil when it is dry and watering is not enough, give it a full watering in time. Enough water will make the Crepe myrtle recover again, but the plant will still appear dry and yellow leaves after a few days due to the damaged root system. Once it return to normal, the leave yellowing will stop . Always check the moisture levels at the pot when you have the Crepe myrtle indoors. Avoid overwatering indoors and see if there are signs of black spots. If these are present, let the soil dry in the pot by giving it a few days of rest from watering. Overwatering can lead to root rot being present in your plant. If this is the case, you might want to transfer them into a different pot, especially if you see discolored and slimy roots. Always prevent root rot as much as possible, and don't let the soil become too soggy. You should dig a little deeper when you plant your Crepe myrtle outdoors. When you check with your fingers and notice that the soil is too dry, it could mean underwatering. Adequate watering is required to help the plant recover.
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How often should I water my Crepe myrtle?
The Crepe myrtle likes deep and infrequent watering. You would want to soak them in a gallon of water each time, especially when they are planted in pots. The water storage of flower pots is limited and the soil will dry out faster. Watering is required every 3 to 5 days when living in a cold region. Water it early in the morning when the soil is dry, outdoors or indoors. You can also determine if watering is needed by checking the soil inside. When the top 2-3 inches of soil is dry, it is time to give the plant a full watering. During hot days, you may need to check the moisture daily, as the heat can quickly dry out the soil in the pot. Irrigation of the soil is also required if you have a garden. When you live in a hot climate, you might want to water once a week. Only water when you notice that about 2 to 3 inches of soil become too dry outdoors or indoors. Consider the amount of rainwater on the plant and ensure not to add to it to prevent root rot.You may not need additional watering of the plants if there is a lot of rainfall.Crepe myrtle generally grows during spring and fall. When they are outdoors, you need to add mulch about 3 to 4 inches deep to conserve more water. You need to water the plants more frequently in sandy soil because this type tends to drain faster. However, with the clay one, you need to water this less frequently where you could go for 2-3 days to dry the plant and not develop any root rot. You could mark the date on the calendar whenever you water and when you notice that the leaves are starting to droop. This can mean that you might be a day late.
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How much water do I need to give my Crepe myrtle?
The Crepe myrtle generally needs about a gallon of water each schedule,With the potted plants, you might want to water them deeply until you see that the water is dripping at the bottom of the pot. Then, wait for the soil to dry before watering them again. You can use a water calculator or a moisture meter to determine the amount you've given to your plant in a week. Provide plenty of water, especially in the flowering period, but let the moisture evaporate afterwards to prevent root rot. If Crepe myrtle is planted outdoor with adequate rainfall, it may not need additional watering. When Crepe myrtle is young or newly planted, make sure it gets 1-2 inches of rain per week. As Crepe myrtle continues to grow, it can survive entirely on rainfall. Only when the weather is too hot, or when there is no rainfall at all for 2-3 weeks, then consider giving Crepe myrtle a full watering during the cooler moment of the day to prevent the plant from suffering from high heat damage. Additional watering will be required during persistent dry spells.
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Should I adjust the watering frequency for my Crepe myrtle according to different seasons or climates?
The Crepe myrtle needs outdoors come from rain, with only persistent dry weather requiring watering. Throughout the spring and fall growing seasons, the soil needs to be kept moist but not soggy, and alternating dry and moist soil conditions will allow the Crepe myrtle to grow well. Throughout the summer, hot weather can cause water to evaporate too quickly, and if there is a lack of rainfall, you will need to water more frequently and extra to keep it moist. Usually, the Crepe myrtle will need less water during the winter. Since the Crepe myrtle will drop their leaves and go dormant, you can put them into a well-draining but moisture-retentive soil mixture like the terracotta to help the water evaporate quicker. Once your Crepe myrtle growing outdoors begins to leaf out and go dormant, you can skip watering altogether and in most cases Crepe myrtle can rely on the fall and winter rains to survive the entire dormant period. After the spring, you can cultivate your Crepe myrtle and encourage it to grow and bloom when the temperature becomes warmer.This plant is not generally a fan of ponding or drought when flowering. You must ensure that the drainage is good at all times, especially during the winter. When the plant is in a pot, the plant has limited root growth. Keep them well-watered, especially if they are planted in pots during summer. They don't like cold and wet roots, so provide adequate drainage, especially if they are still growing. It's always best to water your Crepe myrtle’s diligently. Get the entire root system into a deep soak at least once or twice a week, depending on the weather. It's best to avoid shallow sprinkles that reach the leaves since they generally encourage the growth of fungi and don't reach deep into the roots. Don't allow the Crepe myrtle’s to dry out completely in the fall or winter, even if they are already dormancy. Don't drown the plants because they generally don't like sitting in water for too long. They can die during winter if the soil does not drain well. Also, apply mulch whenever possible to reduce stress, conserve water, and encourage healthy blooms.
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What should I be careful with when I water my Crepe myrtle in different seasons, climates, or during different growing periods?
If planting in the ground, Crepe myrtle mostly relies on rain. However, if there is no rainfall for 2-3 weeks, you may need to give proper consideration to giving the plants a deep watering. If watering Crepe myrtle in summer, you should try to do it in the morning. A large temperature difference between the water temperature and the root system can stress the roots. You need to avoid watering the bushes when it's too hot outside. Start mulching them during the spring when the ground is not too cold. The age of the plants matter. Lack of water is one of the most common reasons the newly planted ones fail to grow. After they are established, you need to ease off the watering schedule. Reduce watering them during the fall and winter, especially if they have a water-retaining material in the soil. The dry winds in winter can dry them out, and the newly planted ones can be at risk of drought during windy winter, summer, and fall. Windy seasons mean that there's more watering required. The ones planted in the pot tend to dry out faster, so they need more watering. Once you see that they bloom less, the leaves begin to dry up. Potted plants are relatively complex to water and fluctuate in frequency. Always be careful that the pot-planted plant don't sit in the water. Avoid putting them in containers with saucers, bowls, and trays. Too much watering in the fall can make the foliage look mottled or yellowish. It's always a good idea to prevent overwatering them regardless of the current climate or season that you might have. During the months when Crepe myrtle begins to flower, you might want to increase the watering frequency but give it a rest once they are fully grown. Give them an adequate amount of water once every 3 to 5 days but don't give them regular schedules. Make sure the soil is dry by sticking your finger in the pot, or use a moisture meter if you're unsure if it's the right time. Too much root rot can cause them to die, so be careful not to overwater or underwater regardless of the climate or season you have in your area.
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Why is watering my Crepe myrtle important?
Watering the Crepe myrtle helps transport the needed nutrients from the soil to the rest of the plant. The moisture will keep this species healthy if you know how much water to give. The watering requirements will depend on the weather in your area and the plant's soil. The Crepe myrtle thrives on moist soil, but they can't generally tolerate waterlogging. Ensure to provide enough mulch when planted on the ground and never fall into the trap of watering too little. They enjoy a full can of watering where the water should be moist at the base when they are planted in a pot to get the best blooms. If they are grown as foliage, you need to water them up to a depth of 10 to 20 inches so they will continue to grow. If it's raining, refrain from watering and let them get the nutrients they need from the rainwater.
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Key Facts About Crepe myrtle

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Attributes of Crepe myrtle

Lifespan
Perennial
Plant Type
Shrub
Planting Time
Spring, Early summer, Fall, Early winter
Bloom Time
Mid summer, Late summer, Early fall, Mid fall
Harvest Time
Fall
Plant Height
6 m to 7 m
Spread
1.8 m to 8 m
Leaf Color
Green
Yellow
Orange
Bronze
Flower Size
3 cm to 4 cm
Flower Color
White
Pink
Red
Purple
Lavender
Burgundy
Fruit Color
Brown
Copper
Stem Color
Gray
Silver
Brown
Green
White
Purple
Pink
Dormancy
Winter dormancy
Leaf type
Deciduous
Ideal Temperature
10 - 35 ℃
Growth Season
Spring, Summer, Fall
Growth Rate
Rapid

Name story

Indian crape myrtle||Crape myrtle

Symbolism

Usages

Environmental Protection Value
Garden Use

Trivia and Interesting Facts

Scientific Classification of Crepe myrtle

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Common Pests & Diseases About Crepe myrtle

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Common issues for Crepe myrtle based on 10 million real cases
Powdery mildew
Powdery mildew Powdery mildew
Powdery mildew
Powdery mildew is a fungal disease that significantly impacts Crepe myrtle aesthetics and vitality. It manifests as a white powdery substance initially on the leaves, then spreading over the entire plant, causing yellowing, deformation, premature leaf drop, and weakened growth.
Brown spot
Brown spot Brown spot
Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Flower withering
Flower withering Flower withering
Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Solutions: If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible. For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface. In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well. If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Leaf rot
Leaf rot Leaf rot
Leaf rot
This pathogen can cause the leaves to rot.
Solutions: Bacterial infections need to be treated quickly to prevent the spread to neighboring, healthy plants, potentially wiping out large sections of your indoor or outdoor garden. In mild cases: Use sterilized (10% bleach solution) pruning shears or scissors to remove any infected plant parts, making sure to dispose of them off site. Use a copper-based bactericide to treat the unaffected foliage, as well as the soil, and neighboring plants. Follow the manufacturer’s rate and timing directions found on the product label. In severe cases, where more than half the leaves are affected: Remove all of the infected plants from the garden, disposing of them off site. Treat the soil and neighboring plants using a copper-based bactericide. Follow the manufacturer’s rate and timing directions found on the product label.
Leaf deformity
Leaf deformity Leaf deformity
Leaf deformity
Leaf deformities can have a variety of causes.
Solutions: Follow these steps to revive plants with abnormal leaves. Remove damaged leaves: Plants can recover from damage when given the time to do so. Remove any deformed leaves so they don't continue drawing energy from the plant. This also creates room for healthier ones to grow. Stop using herbicide: Though herbicide damage is challenging to diagnose, gardeners can potentially prevent deformed leaves by not using any and by strictly following manufacturers instructions. Spray insecticide: Prevent pests from inhabiting plant leaves by spraying with insecticide regularly and practicing good natural pest prevention techniques. Apply a balanced fertilizer: Solve nutrient deficiencies and excesses by using a well-balanced fertilizer (organic or conventional both work) before planting, and consider topdressing when signs of stress are apparent. Fix watering schedule: If plant leaves are curled downward due to too much or too little water, adjust the watering schedule so the soil is moist, but not damp. Remove infected plants: If the plant has succumbed to a viral infection, not much can be done to revive it. Remove and destroy all compromised plant material to prevent spread to other plants.
Underwatering yellow
Underwatering yellow Underwatering yellow
Underwatering yellow
A lack of water will cause the leaves to gradually turn yellow starting at the base of the branch while the entire plant appears to wilt.
Solutions: Your plant is very thirsty and needs water promptly. You can revive your plant by giving it water. The easiest technique is to slowly pour water into your plant’s soil so that the whole surface is moistened. If you pour the water too quickly, the water will flow directly through rather than diffusing throughout the soil. If your plant’s pot does not have drainage holes, do not give your plant more than about a third of the pot’s volume of water. If your plant’s pot does have drainage holes, you can add water slowly until the soil is thoroughly moistened and the water flows freely through the pot. If you trim off yellow leaves to improve the plant’s appearance, do not remove more than a third of the plant’s leaves. It may be better to wait until leaves have died and fallen off to remove them.
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plant poor
Powdery mildew
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Powdery mildew Disease on Crepe myrtle?
What is Powdery mildew Disease on Crepe myrtle?
Powdery mildew is a fungal disease that significantly impacts Crepe myrtle aesthetics and vitality. It manifests as a white powdery substance initially on the leaves, then spreading over the entire plant, causing yellowing, deformation, premature leaf drop, and weakened growth.
Symptom Analysis
Symptom Analysis
On Crepe myrtle, the key indications of powdery mildew include patchy or composite white powdery spots on the leaves, stems, and buds. These affected parts often distort or curl up, eventually yellowing or browning and falling off prematurely. Possibility of stunted growth and weakened plant vitality.
What Causes Powdery mildew Disease on Crepe myrtle?
What Causes Powdery mildew Disease on Crepe myrtle?
1
Fungi
The disease is primarily caused by the Erysiphales order of fungi, especially Erysiphe lagerstroemiae which specializes in infecting Crepe myrtle. A humid climate with moderate temperatures fosters spore germination and redistribution.
How to Treat Powdery mildew Disease on Crepe myrtle?
How to Treat Powdery mildew Disease on Crepe myrtle?
1
Non pesticide
Pruning: Pruning infected parts helps limit the disease's spread. Duty-bound disposal of these plant parts is critical to avoid re-infection.

Increase Air Circulation: Planting Crepe myrtle at appropriate distances can promote better airflow, discouraging powdery mildew formation.
2
Pesticide
Fungicidal Spray: Applying fungicides, especially those sulfur-based, at disease onset can effectively manage powdery mildew. Follow product instructions for application rates and intervals.

Protective spray: Early intervention with a protective spray regime can prevent the condition worsening, particularly in previously affected plants.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
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Flower withering
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Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Overview
Overview
Flower withering occurs when flowers become weak, droopy, wilted, or faded until they can’t be revived. During withering, they begin to wrinkle and shrink until the flower becomes completely dry or dead.
Any flowers, regardless of the plant type or the climate they are grown in, are susceptible to withering. It is a worldwide problem across houseplants, herbs, flowering ornamentals, trees, shrubs, garden vegetables, and food crops.
Unlike wilting—which withering is often confused with—withering can be caused by different things and is often due to more than a lack of water. Withering can be fatal in severe cases.
Symptom Analysis
Symptom Analysis
Flower withering progresses from very mild cases to severe occurrences that kill the flower. The severity of the symptoms is related to the cause and how long the condition is allowed to progress before action is taken.
  • Wilted, droopy flowers
  • Petals and leaves begin to wrinkle
  • Brown papery streaks or spots appear on the petals and leaf tips
  • Flowerhead shrink in size
  • Petal color fades
  • Yellowing leaves
  • Complete death of the flower
Disease Cause
Disease Cause
The main causes of flower withering include natural age progress, lack of water, nutritional deficiencies, and bacterial or fungal diseases. It’s critical to determine the underlying cause when flower withering is noticed. This will guide the best course of action, if treatment is possible.
Check the soil for moisture and then closely examine the entire plant for signs of nutrient deficiencies. If neither of those appears to be the cause then cut open the stem below a flower. If a cross-section reveals brown or rust-colored stains it is safe to assume that this is a bacterial or fungal infection.
If the flower is nearing the end of its normal lifespan, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence, or cell aging and death. Cell division stops and the plant begins breaking down resources within the flower to use in other parts of the plant.
In all other cases, flower withering happens when the plant seals off the stem as a defense mechanism, stopping transport within the vascular system. This prevents further water loss through the flowers but also stops bacteria and fungi from moving to healthy parts of the plant. Once water and nutrient transport stops, the flower begins to wither and ultimately die.
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Leaf rot
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Leaf rot
This pathogen can cause the leaves to rot.
Overview
Overview
Leaf rot is very common among both house plants and garden plants. It affects foliage and occurs mainly when the leaves become wet due to rain or misting by the gardener. The cause is fungal disease and this is facilitated by the fungal spores adhering to wet leaves then penetrating the leaf and expanding rapidly. Damp conditions and poor air circulation will increase chances of infection taking place. Another factor are leaves that are damaged or have been penetrated by sap sucking insects that facilitate plant penetration.
Symptom Analysis
Symptom Analysis
  1. Spores are able to cling to a damp leaf and penetrate, often through an existing wound.
  2. A small dark brown mark appears which expands rapidly as sporulation starts to take place.
  3. Quite quickly these bull's eye like circles can link together and the whole leaf turns dark and loses texture.
  4. Leaf drop occurs.
Disease Cause
Disease Cause
These symptoms are caused by a bacterial infection invading the plant. Bacteria from many sources in the environment (air, water, soil, diseased plants) enter a plant through wounds, or in some cases the stomata when they are open. Once inside the leaf tissue, the bacteria feed and reproduce quickly, breaking down healthy leaves.
Bacterial infections threaten most plant species, and are more prominent in wet weather that more easily transfers the bacteria from plant to plant, or from soil to plant.
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Leaf deformity
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Leaf deformity
Leaf deformities can have a variety of causes.
Overview
Overview
Leaf deformity manifests in the form of curled, cupped, or distorted leaves, often first seen in the spring. There are a number of different possibilities as to the cause and it will not always be easy to isolate the problem without laboratory analysis. In the majority of cases, however, the gardener should be able to isolate the cause through close examination of the plant and the local conditions.
Symptom Analysis
Symptom Analysis
The plant has developed abnormal leaves. They may look similar to leaf curl, but show other problems such as:
  • stunting
  • abnormal shapes
  • a bumpy texture
  • gaps between leaf sections
  • raised growths on the top surface
Disease Cause
Disease Cause
The causes are widespread and varied and the gardener will need to examine plants carefully as well as consider environmental factors.
Disease due to insect damage: Mites, aphids, and other insects that feast on plant leaves can leave them vulnerable to viral and bacterial disease. Some, like leaf galls and rust, produce distorted leaves. If the gardener sees insects on the plants, it is likely the insect is the culprit. Some mites are too small to see, and laboratory analysis may be required.
Herbicide exposure: Herbicides can stress plant leaves. This may lead to stunted growth and a curling, cupped appearance. Even if the plant owner didn't apply herbicides, herbicide drift and planting in contaminated soils can expose plants to these chemicals. If all plants in an area have deformed leaves, the cause is likely herbicides. Herbicide exposure is also characterized by narrow new leaves.
Less than ideal growing conditions: If plants are exposed to cold temperatures right as their leaves are coming out of the bud, they might become stunted and malformed. If deformed leaves occur right after a cold spell or frost, this is likely the cause. Too much and too little water can also cause deformed leaves. Leaves curling down but not distorting is more likely to be a watering issue than a leaf deformity.
Nutrient deficiencies: A lack of critical nutrients during the growing phase, including boron, calcium, and molybdenum, may lead plant leaves to grow stunted or disfigured. If a nutrient deficiency is to blame, the leaves will also show discoloring.
Fungal infections: a variety of fungal pathogens can distort leaves, as is the case with Peach leaf curl.
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Underwatering yellow
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Underwatering yellow
A lack of water will cause the leaves to gradually turn yellow starting at the base of the branch while the entire plant appears to wilt.
Symptom Analysis
Symptom Analysis
Your plant’s leaves are turning yellow due to underwatering, the oldest leaves turn yellow first. Leaves yellow from the edges towards the middle. Other signs of underwatering include the soil feeling very dry or pulling away from the edge of its pot.
Solutions
Solutions
Your plant is very thirsty and needs water promptly.
  1. You can revive your plant by giving it water. The easiest technique is to slowly pour water into your plant’s soil so that the whole surface is moistened. If you pour the water too quickly, the water will flow directly through rather than diffusing throughout the soil. If your plant’s pot does not have drainage holes, do not give your plant more than about a third of the pot’s volume of water. If your plant’s pot does have drainage holes, you can add water slowly until the soil is thoroughly moistened and the water flows freely through the pot.
  2. If you trim off yellow leaves to improve the plant’s appearance, do not remove more than a third of the plant’s leaves. It may be better to wait until leaves have died and fallen off to remove them.
Prevention
Prevention
  1. When you get a new plant, research its specific watering needs. Set reminders so that you remember to water your plants consistently. Not all plants are the same, so make sure to differentiate all of your plants in your watering schedule.
  2. You may wish to purchase a commercial soil water meter which has a long probe that you place near your plant’s roots. Be sure to check it frequently and water your plant when the soil water meter indicates that it needs watering.
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Distribution of Crepe myrtle

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Habitat of Crepe myrtle

Open grassy places, cliffs, forest edges
Northern Hemisphere
South Hemisphere

Distribution Map of Crepe myrtle

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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More Info on Crepe Myrtle Growth and Care

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Basic Care Guide
Common Pests & Diseases
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Water
Every 1-2 weeks
Crepe myrtle hails from regions in Asia, including China and Korea. It thrives in a variety of environments, such as forests, meadows, and hillsides, with well-drained soil. The plant prefers a moderate to high level of moisture, which is reflected in its watering needs. As it originates from areas with regular rainfall and relatively high humidity, it is important to provide consistent watering to mimic its native environment. The soil should be kept moist but not overly saturated to prevent waterlogging and root rot.
Watering Techniques
Lighting
Full sun
Crepe myrtle thrives in areas drenched in sunlight for most of the day and can survive in places where sunlight is scattered or filtered through taller structures. Originating from a habitat bathed in ample daylight, it adapts adequately to less sunny situations. However, reduced light contribution might affect its ability to flourish, whilst excessive sunlight might cause light stress and impede growth.
Best Sunlight Practices
Transplant
4-6 feet
Crepe myrtle thrives when transplanted during the warm and sunny days of late spring to mid-summer. Choose a well-drained location with ample sunlight for healthy growth. Gently tease out the roots during transplant for better establishment.
Transplant Techniques
Temperature
-15 - 41 ℃
Crepe myrtle requires a temperature between 50 to 95 ℉ (10 to 35 ℃), which is suitable in its native growth environment. During summer, it prefers cooler temperatures and tolerates high heat and drought. In winter, it goes dormant and can withstand freezing temperatures. It can be adjusted in temperature through proper watering and shading.
Temp for Healthy Growth
Pruning
Spring, Winter
With spectacular blooms and exfoliating bark, crepe myrtle thrives with appropriate cuts that enhance flowering and maintain shape. Prune in late winter or early spring before new growth. Remove spent flowers, thin crowded branches, and cut back to a bud facing the desired direction. Pruning boosts blooming and promotes vigor. Avoid 'topping' as it can weaken structure and aesthetic appeal.
Pruning techniques
Propagation
The ideal period to propagate crepe myrtle by cuttings is early autumn. This allows the cuttings to establish roots in cooler, stable temperatures while benefiting from diminishing, yet adequate daylight. This timing strategically positions the young crepe myrtle for vigorous spring growth. A reliable horticultural consensus underscores autumn’s moderate conditions as fostering optimal root development without the stress of peak summer heat or winter chill.
Crepe myrtle exhibits easiest propagation during Autumn and Winter using techniques like cutting and layering. Propagation is moderately difficult, and successful growth is indicated by sprouting new leaves. Ensure frequent misting for optimal results.
Propagation Techniques
Powdery mildew
Powdery mildew is a fungal disease that significantly impacts Crepe myrtle aesthetics and vitality. It manifests as a white powdery substance initially on the leaves, then spreading over the entire plant, causing yellowing, deformation, premature leaf drop, and weakened growth.
Read More
Sooty mold
Sooty mold is a fungal disease that primarily affects Crepe myrtle's leaves, significantly obstructing photosynthesis. Its black, soot-like coating hampers the plant's overall health and aesthetics. This mold is generally caused by sap-sucking insects and is most prevalent in warm, humid conditions.
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Wilting
Wilting is a devastating ailment that causes significant distress to Crepe myrtle. This disease triggers dehydration, leading to drooping of leaves, yellow discoloration, and, in severe cases, plant death. Prompt intervention is crucial to mitigate its severe damage.
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Leaf blight
Leaf blight is a fungal disease that affects Crepe myrtle, primarily causing leaf spots and shoot dieback. This can lead to severe defoliation and can potentially stunt the growth of the plant if left untreated. Timely intervention and preventative measures can manage the disease effectively.
Read More
Leaf rot
Leaf rot is a serious disease that affects Crepe myrtle. Caused by various fungi, it results in the decaying of plant tissues and eventual plant death. Prompt detection is crucial, followed by appropriate treatment and preventative measures.
Read More
Brown blotch
Brown spot is a fungal disease that significantly impacts the health of Crepe myrtle, causing brown blotches on the leaves, eventually leading to defoliation. The disease proliferates in warm, humid conditions, making management and prevention crucial.
Read More
Dark spots
Dark spots, caused by infection, affect Crepe myrtle by discoloring its leaves. The disease is potentially lethal and may detrimentally affect the plant's health and appeal. Prompt identification and treatment are crucial for disease control.
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Yellow edges
Yellow edges is a common disease that affects Crepe myrtle, characterized by yellowing borders on leaves. Although not extremely lethal, this disease can severely impact the plant's aesthetic beauty and overall health. Factors such as fungal infections and unbalanced nutrition can cause the disease.
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Leaf wilting
Leaf wilting is a potentially harmful disorder that may affect Crepe myrtle, causing its leaves to droop, curl, and finally fall. The disease, often a sign of serious health problems, can lead to stunted growth or even death of the plant if not addressed timely.
Read More
Wounds
Wounds on Crepe myrtle range from minor cuts to severe gashes and result primarily from improper pruning practices or physical damages. These injuries expose the plant to an array of pathogens, leading to diseases causing potential damage.
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Dark blotch
Dark blotch is a harmful disease affecting Crepe myrtle, causing severe damage to leaves, stems, and flowers. The pathogen responsible is the fungus Phomopsis spp., leading to reduced plant vigor and potentially plant death. Swift action is required to manage its impact.
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Leaf white mold
Leaf white mold is a dangerous fungal disease causing significant distress to Crepe myrtle. It is characterized by fluffy white growths on leaves and other parts of the plant, leading to premature yellowing, wilting, and even plant death if left untreated.
Read More
Flower withering
Flower withering is a detrimental disease affecting Crepe myrtle that can severely damage the plant's blossoming performance. Caused by environmental stress or fungal pathogens, the disease evinces through withering or drying out of flowers, potentially leading to a loss in plant aesthetics and health.
Read More
Flower wilting
Flower wilting is a disease that significantly impacts Crepe myrtle, causing its vibrant blossoms to droop and lose vitality. It's often triggered by factors such as fungi, bacteria, pests, or abiotic conditions, which can eventually lead to the plant's death if not promptly treated.
Read More
Feng shui direction
South
Crepe myrtle is considered fairly compatible with South-facing homes in Feng Shui, as it is associated with the Fire element. This direction correlates with fame and recognition, and the vibrant blossoms tend to enhance this energy. However, it's important to note the diverse Feng Shui interpretations, so individual experiences may differ.
Fengshui Details
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Flamegold rain tree
Flamegold rain tree
Flamegold rain tree(Koelreuteria elegans) is a decorative tree native to China, which is listed as a weed in much of the world. It is particularly harmful in Hawaii and Brisbane, Australia.
Red box
Red box
Red box (Eucalyptus polyanthemos) is a tree that can grow to 20 m tall. It has round to oval, grayish green leaves and a box-shaped trunk. Foliage is fragrant and evergreen. Blooms in early spring with small, white flowers. Thrives in full sun with medium, well-drained soil. Once established, it is drought tolerant.
Silver birch
Silver birch
The silver birch is native to Europe, Siberia, and China. It can grow between 15 m and 25 m, with a potential to reach 31 m. Its distinct bark is white and eventually becomes flaky. The leaves are pale green during summer and yellow during fall.
Green amaranth
Green amaranth
Green amaranth is an annual herb. In many countries, it is used as a boiled vegetable. The seeds can be eaten as a nutty snack. Green amaranth contains much protein with the essential amino acid, lysine, so it can be a option for vegetarians.
Common three-seeded mercury
Common three-seeded mercury
The common three-seeded mercury is considered a weed and has a wide distribution in the United States everywhere East of the Rocky Mountains. The name of this plant comes from Greek mythology and references the small bracts surrounding the flowers that resemble Mercury’s winged sandals.
Indian Laurel
Indian Laurel
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Poison ivy
Poison ivy
In pop culture, poison ivy is a symbol of an obnoxious weed because, despite its unthreatening looks, it gives a highly unpleasant contact rash to the unfortunate person who touches it. Still, it is commonly eaten by many animals, and the seeds are a favorite with birds. The leaves turn bright red in fall. Its sister species, Western poison ivy (Toxicodendron rydbergii), is not considered to be invasive in the United States, but is noxious in Australia and New Zealand.
Pokeweed
Pokeweed
Although its berries look juicy and tempting, the fruits and the root of pokeweed are toxic and should not be eaten. Pokeweed is considered a pest species by farmers but is nevertheless often grown as an ornamental plant. Its berries can be made into pokeberry ink as well.
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Crepe myrtle
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Crepe myrtle
Crepe myrtle
Crepe myrtle
Lagerstroemia indica
Also known as: Indian crape myrtle
Water
Water
Every 1-2 weeks
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Questions About Crepe myrtle

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What's the best method to water my Crepe myrtle?
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What should I do if I water Crepe myrtle too much/too little?
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How often should I water my Crepe myrtle?
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How much water do I need to give my Crepe myrtle?
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Should I adjust the watering frequency for my Crepe myrtle according to different seasons or climates?
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What should I be careful with when I water my Crepe myrtle in different seasons, climates, or during different growing periods?
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Key Facts About Crepe myrtle

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Attributes of Crepe myrtle

Lifespan
Perennial
Plant Type
Shrub
Planting Time
Spring, Early summer, Fall, Early winter
Bloom Time
Mid summer, Late summer, Early fall, Mid fall
Harvest Time
Fall
Plant Height
6 m to 7 m
Spread
1.8 m to 8 m
Leaf Color
Green
Yellow
Orange
Bronze
Flower Size
3 cm to 4 cm
Flower Color
White
Pink
Red
Purple
Lavender
Burgundy
Fruit Color
Brown
Copper
Stem Color
Gray
Silver
Brown
Green
White
Purple
Pink
Dormancy
Winter dormancy
Leaf type
Deciduous
Ideal Temperature
10 - 35 ℃
Growth Season
Spring, Summer, Fall
Growth Rate
Rapid
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Name story

Indian crape myrtle||Crape myrtle

Symbolism

Usages

Environmental Protection Value
Garden Use

Trivia and Interesting Facts

Scientific Classification of Crepe myrtle

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Common Pests & Diseases About Crepe myrtle

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Common issues for Crepe myrtle based on 10 million real cases
Powdery mildew
Powdery mildew Powdery mildew Powdery mildew
Powdery mildew is a fungal disease that significantly impacts Crepe myrtle aesthetics and vitality. It manifests as a white powdery substance initially on the leaves, then spreading over the entire plant, causing yellowing, deformation, premature leaf drop, and weakened growth.
Learn More About the Powdery mildew more
Brown spot
Brown spot Brown spot Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Learn More About the Brown spot more
Flower withering
Flower withering Flower withering Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Solutions: If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible. For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface. In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well. If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Learn More About the Flower withering more
Leaf rot
Leaf rot Leaf rot Leaf rot
This pathogen can cause the leaves to rot.
Solutions: Bacterial infections need to be treated quickly to prevent the spread to neighboring, healthy plants, potentially wiping out large sections of your indoor or outdoor garden. In mild cases: Use sterilized (10% bleach solution) pruning shears or scissors to remove any infected plant parts, making sure to dispose of them off site. Use a copper-based bactericide to treat the unaffected foliage, as well as the soil, and neighboring plants. Follow the manufacturer’s rate and timing directions found on the product label. In severe cases, where more than half the leaves are affected: Remove all of the infected plants from the garden, disposing of them off site. Treat the soil and neighboring plants using a copper-based bactericide. Follow the manufacturer’s rate and timing directions found on the product label.
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Leaf deformity
Leaf deformity Leaf deformity Leaf deformity
Leaf deformities can have a variety of causes.
Solutions: Follow these steps to revive plants with abnormal leaves. Remove damaged leaves: Plants can recover from damage when given the time to do so. Remove any deformed leaves so they don't continue drawing energy from the plant. This also creates room for healthier ones to grow. Stop using herbicide: Though herbicide damage is challenging to diagnose, gardeners can potentially prevent deformed leaves by not using any and by strictly following manufacturers instructions. Spray insecticide: Prevent pests from inhabiting plant leaves by spraying with insecticide regularly and practicing good natural pest prevention techniques. Apply a balanced fertilizer: Solve nutrient deficiencies and excesses by using a well-balanced fertilizer (organic or conventional both work) before planting, and consider topdressing when signs of stress are apparent. Fix watering schedule: If plant leaves are curled downward due to too much or too little water, adjust the watering schedule so the soil is moist, but not damp. Remove infected plants: If the plant has succumbed to a viral infection, not much can be done to revive it. Remove and destroy all compromised plant material to prevent spread to other plants.
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Underwatering yellow
Underwatering yellow Underwatering yellow Underwatering yellow
A lack of water will cause the leaves to gradually turn yellow starting at the base of the branch while the entire plant appears to wilt.
Solutions: Your plant is very thirsty and needs water promptly. You can revive your plant by giving it water. The easiest technique is to slowly pour water into your plant’s soil so that the whole surface is moistened. If you pour the water too quickly, the water will flow directly through rather than diffusing throughout the soil. If your plant’s pot does not have drainage holes, do not give your plant more than about a third of the pot’s volume of water. If your plant’s pot does have drainage holes, you can add water slowly until the soil is thoroughly moistened and the water flows freely through the pot. If you trim off yellow leaves to improve the plant’s appearance, do not remove more than a third of the plant’s leaves. It may be better to wait until leaves have died and fallen off to remove them.
Learn More About the Underwatering yellow more
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Powdery mildew
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Powdery mildew Disease on Crepe myrtle?
What is Powdery mildew Disease on Crepe myrtle?
Powdery mildew is a fungal disease that significantly impacts Crepe myrtle aesthetics and vitality. It manifests as a white powdery substance initially on the leaves, then spreading over the entire plant, causing yellowing, deformation, premature leaf drop, and weakened growth.
Symptom Analysis
Symptom Analysis
On Crepe myrtle, the key indications of powdery mildew include patchy or composite white powdery spots on the leaves, stems, and buds. These affected parts often distort or curl up, eventually yellowing or browning and falling off prematurely. Possibility of stunted growth and weakened plant vitality.
What Causes Powdery mildew Disease on Crepe myrtle?
What Causes Powdery mildew Disease on Crepe myrtle?
1
Fungi
The disease is primarily caused by the Erysiphales order of fungi, especially Erysiphe lagerstroemiae which specializes in infecting Crepe myrtle. A humid climate with moderate temperatures fosters spore germination and redistribution.
How to Treat Powdery mildew Disease on Crepe myrtle?
How to Treat Powdery mildew Disease on Crepe myrtle?
1
Non pesticide
Pruning: Pruning infected parts helps limit the disease's spread. Duty-bound disposal of these plant parts is critical to avoid re-infection.

Increase Air Circulation: Planting Crepe myrtle at appropriate distances can promote better airflow, discouraging powdery mildew formation.
2
Pesticide
Fungicidal Spray: Applying fungicides, especially those sulfur-based, at disease onset can effectively manage powdery mildew. Follow product instructions for application rates and intervals.

Protective spray: Early intervention with a protective spray regime can prevent the condition worsening, particularly in previously affected plants.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
Solutions
Solutions
In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary.
Organic options won’t kill the fungus, but will prevent it from spreading.
  1. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear.
  2. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread.
  3. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Prevention
Prevention
Like many other diseases, it is easier to prevent brown spot than cure it, and this is done through cultural practices.
  • Clear fall leaves from the ground before winter to minimize places where fungi and bacteria can overwinter.
  • Maintain good air movement between plants through proper plant spacing.
  • Increase air circulation through the center of plants through pruning.
  • Thoroughly clean all pruning tools after working with diseased plants.
  • Never dispose of disease plant material in a compost pile.
  • Avoid overhead watering to keep moisture off of the foliage.
  • Keep plants healthy by providing adequate sunlight, water, and fertilizer.
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Flower withering
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Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Overview
Overview
Flower withering occurs when flowers become weak, droopy, wilted, or faded until they can’t be revived. During withering, they begin to wrinkle and shrink until the flower becomes completely dry or dead.
Any flowers, regardless of the plant type or the climate they are grown in, are susceptible to withering. It is a worldwide problem across houseplants, herbs, flowering ornamentals, trees, shrubs, garden vegetables, and food crops.
Unlike wilting—which withering is often confused with—withering can be caused by different things and is often due to more than a lack of water. Withering can be fatal in severe cases.
Symptom Analysis
Symptom Analysis
Flower withering progresses from very mild cases to severe occurrences that kill the flower. The severity of the symptoms is related to the cause and how long the condition is allowed to progress before action is taken.
  • Wilted, droopy flowers
  • Petals and leaves begin to wrinkle
  • Brown papery streaks or spots appear on the petals and leaf tips
  • Flowerhead shrink in size
  • Petal color fades
  • Yellowing leaves
  • Complete death of the flower
Disease Cause
Disease Cause
The main causes of flower withering include natural age progress, lack of water, nutritional deficiencies, and bacterial or fungal diseases. It’s critical to determine the underlying cause when flower withering is noticed. This will guide the best course of action, if treatment is possible.
Check the soil for moisture and then closely examine the entire plant for signs of nutrient deficiencies. If neither of those appears to be the cause then cut open the stem below a flower. If a cross-section reveals brown or rust-colored stains it is safe to assume that this is a bacterial or fungal infection.
If the flower is nearing the end of its normal lifespan, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence, or cell aging and death. Cell division stops and the plant begins breaking down resources within the flower to use in other parts of the plant.
In all other cases, flower withering happens when the plant seals off the stem as a defense mechanism, stopping transport within the vascular system. This prevents further water loss through the flowers but also stops bacteria and fungi from moving to healthy parts of the plant. Once water and nutrient transport stops, the flower begins to wither and ultimately die.
Solutions
Solutions
If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface.
In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well.
If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Prevention
Prevention
This is definitely one of those instances where prevention is more effective than cure. Here are some preventative measures for avoiding premature flower withering.
  • Water plants according to their needs -- either keep the soil slightly moist or allow the top inch or two to dry out before watering again.
  • Fertilize lightly on a consistent basis, depending upon the plant’s growth. Quick-growing plants and those that flower or develop fruit will need more frequent fertilizing than slow-growing plants.
  • Purchase plants that are certified disease- or pathogen-free.
  • Look for disease-resistant cultivars.
  • Isolate plants showing disease symptoms to prevent the spread to neighboring plants.
  • Practice good plant hygiene by removing any fallen plant material as soon as possible.
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Leaf rot
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Leaf rot
This pathogen can cause the leaves to rot.
Overview
Overview
Leaf rot is very common among both house plants and garden plants. It affects foliage and occurs mainly when the leaves become wet due to rain or misting by the gardener. The cause is fungal disease and this is facilitated by the fungal spores adhering to wet leaves then penetrating the leaf and expanding rapidly. Damp conditions and poor air circulation will increase chances of infection taking place. Another factor are leaves that are damaged or have been penetrated by sap sucking insects that facilitate plant penetration.
Symptom Analysis
Symptom Analysis
  1. Spores are able to cling to a damp leaf and penetrate, often through an existing wound.
  2. A small dark brown mark appears which expands rapidly as sporulation starts to take place.
  3. Quite quickly these bull's eye like circles can link together and the whole leaf turns dark and loses texture.
  4. Leaf drop occurs.
Disease Cause
Disease Cause
These symptoms are caused by a bacterial infection invading the plant. Bacteria from many sources in the environment (air, water, soil, diseased plants) enter a plant through wounds, or in some cases the stomata when they are open. Once inside the leaf tissue, the bacteria feed and reproduce quickly, breaking down healthy leaves.
Bacterial infections threaten most plant species, and are more prominent in wet weather that more easily transfers the bacteria from plant to plant, or from soil to plant.
Solutions
Solutions
Bacterial infections need to be treated quickly to prevent the spread to neighboring, healthy plants, potentially wiping out large sections of your indoor or outdoor garden.
In mild cases: Use sterilized (10% bleach solution) pruning shears or scissors to remove any infected plant parts, making sure to dispose of them off site. Use a copper-based bactericide to treat the unaffected foliage, as well as the soil, and neighboring plants. Follow the manufacturer’s rate and timing directions found on the product label.
In severe cases, where more than half the leaves are affected: Remove all of the infected plants from the garden, disposing of them off site. Treat the soil and neighboring plants using a copper-based bactericide. Follow the manufacturer’s rate and timing directions found on the product label.
Prevention
Prevention
  1. Clean up garden debris at the end of the season, especially if it contains any diseased plant tissue. Diseases can overwinter from season to season and infect new plants.
  2. Avoid overhead watering to prevent transferring pathogens from one plant to another, and to keep foliage dry.
  3. Mulch around the base of plants to prevent soil-borne bacteria from splashing up onto uninfected plants.
  4. Sterilize cutting tools using a 10% bleach solution when gardening and moving from one plant to another.
  5. Do not work in your garden when it is wet.
  6. Rotate crops to prevent the buildup of bacteria in one site due to continuous cropping.
  7. Use a copper or streptomycin-containing bactericide in early spring to prevent infection. Read label directions carefully as they are not suitable for all plants.
  8. Ensure plants are well spaced and thin leaves on densely leaved plants so that air circulation is maximised.
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Leaf deformity
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Leaf deformity
Leaf deformities can have a variety of causes.
Overview
Overview
Leaf deformity manifests in the form of curled, cupped, or distorted leaves, often first seen in the spring. There are a number of different possibilities as to the cause and it will not always be easy to isolate the problem without laboratory analysis. In the majority of cases, however, the gardener should be able to isolate the cause through close examination of the plant and the local conditions.
Symptom Analysis
Symptom Analysis
The plant has developed abnormal leaves. They may look similar to leaf curl, but show other problems such as:
  • stunting
  • abnormal shapes
  • a bumpy texture
  • gaps between leaf sections
  • raised growths on the top surface
Disease Cause
Disease Cause
The causes are widespread and varied and the gardener will need to examine plants carefully as well as consider environmental factors.
Disease due to insect damage: Mites, aphids, and other insects that feast on plant leaves can leave them vulnerable to viral and bacterial disease. Some, like leaf galls and rust, produce distorted leaves. If the gardener sees insects on the plants, it is likely the insect is the culprit. Some mites are too small to see, and laboratory analysis may be required.
Herbicide exposure: Herbicides can stress plant leaves. This may lead to stunted growth and a curling, cupped appearance. Even if the plant owner didn't apply herbicides, herbicide drift and planting in contaminated soils can expose plants to these chemicals. If all plants in an area have deformed leaves, the cause is likely herbicides. Herbicide exposure is also characterized by narrow new leaves.
Less than ideal growing conditions: If plants are exposed to cold temperatures right as their leaves are coming out of the bud, they might become stunted and malformed. If deformed leaves occur right after a cold spell or frost, this is likely the cause. Too much and too little water can also cause deformed leaves. Leaves curling down but not distorting is more likely to be a watering issue than a leaf deformity.
Nutrient deficiencies: A lack of critical nutrients during the growing phase, including boron, calcium, and molybdenum, may lead plant leaves to grow stunted or disfigured. If a nutrient deficiency is to blame, the leaves will also show discoloring.
Fungal infections: a variety of fungal pathogens can distort leaves, as is the case with Peach leaf curl.
Solutions
Solutions
Follow these steps to revive plants with abnormal leaves.
  1. Remove damaged leaves: Plants can recover from damage when given the time to do so. Remove any deformed leaves so they don't continue drawing energy from the plant. This also creates room for healthier ones to grow.
  2. Stop using herbicide: Though herbicide damage is challenging to diagnose, gardeners can potentially prevent deformed leaves by not using any and by strictly following manufacturers instructions.
  3. Spray insecticide: Prevent pests from inhabiting plant leaves by spraying with insecticide regularly and practicing good natural pest prevention techniques.
  4. Apply a balanced fertilizer: Solve nutrient deficiencies and excesses by using a well-balanced fertilizer (organic or conventional both work) before planting, and consider topdressing when signs of stress are apparent.
  5. Fix watering schedule: If plant leaves are curled downward due to too much or too little water, adjust the watering schedule so the soil is moist, but not damp.
  6. Remove infected plants: If the plant has succumbed to a viral infection, not much can be done to revive it. Remove and destroy all compromised plant material to prevent spread to other plants.
Prevention
Prevention
  1. Fertilize properly. Keep your plants full of essential nutrients with a balanced fertilizer.
  2. Regularly monitor for pests. Remove all pests by hand or treat them with an insecticide. Early discovery and treatment will prevent the spread of pests and diseases.
  3. Provide the proper amount of water. Water until the soil is moist, but not damp. Only once the soil dries out, should the plant be watered again.
  4. Protect plants from cold. Bring plants indoors or protect them with frost cloth when bad weather is forecast.
  5. Avoid herbicide exposure. If the gardener or surrounding neighbors are applying herbicides, consider moving vulnerable plants to where they are less exposed to any chemicals that may be carried on the wind.
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Underwatering yellow
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Underwatering yellow
A lack of water will cause the leaves to gradually turn yellow starting at the base of the branch while the entire plant appears to wilt.
Symptom Analysis
Symptom Analysis
Your plant’s leaves are turning yellow due to underwatering, the oldest leaves turn yellow first. Leaves yellow from the edges towards the middle. Other signs of underwatering include the soil feeling very dry or pulling away from the edge of its pot.
Solutions
Solutions
Your plant is very thirsty and needs water promptly.
  1. You can revive your plant by giving it water. The easiest technique is to slowly pour water into your plant’s soil so that the whole surface is moistened. If you pour the water too quickly, the water will flow directly through rather than diffusing throughout the soil. If your plant’s pot does not have drainage holes, do not give your plant more than about a third of the pot’s volume of water. If your plant’s pot does have drainage holes, you can add water slowly until the soil is thoroughly moistened and the water flows freely through the pot.
  2. If you trim off yellow leaves to improve the plant’s appearance, do not remove more than a third of the plant’s leaves. It may be better to wait until leaves have died and fallen off to remove them.
Prevention
Prevention
  1. When you get a new plant, research its specific watering needs. Set reminders so that you remember to water your plants consistently. Not all plants are the same, so make sure to differentiate all of your plants in your watering schedule.
  2. You may wish to purchase a commercial soil water meter which has a long probe that you place near your plant’s roots. Be sure to check it frequently and water your plant when the soil water meter indicates that it needs watering.
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distribution

Distribution of Crepe myrtle

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Habitat of Crepe myrtle

Open grassy places, cliffs, forest edges
Northern Hemisphere
South Hemisphere

Distribution Map of Crepe myrtle

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Cultivated
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No species reported
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More Info on Crepe Myrtle Growth and Care

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Basic Care Guide
Common Pests & Diseases
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Powdery mildew
Powdery mildew
Powdery mildew is a fungal disease that significantly impacts Crepe myrtle aesthetics and vitality. It manifests as a white powdery substance initially on the leaves, then spreading over the entire plant, causing yellowing, deformation, premature leaf drop, and weakened growth.
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Sooty mold
Sooty mold
Sooty mold is a fungal disease that primarily affects Crepe myrtle's leaves, significantly obstructing photosynthesis. Its black, soot-like coating hampers the plant's overall health and aesthetics. This mold is generally caused by sap-sucking insects and is most prevalent in warm, humid conditions.
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Wilting
Wilting
Wilting is a devastating ailment that causes significant distress to Crepe myrtle. This disease triggers dehydration, leading to drooping of leaves, yellow discoloration, and, in severe cases, plant death. Prompt intervention is crucial to mitigate its severe damage.
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Leaf blight
Leaf blight
Leaf blight is a fungal disease that affects Crepe myrtle, primarily causing leaf spots and shoot dieback. This can lead to severe defoliation and can potentially stunt the growth of the plant if left untreated. Timely intervention and preventative measures can manage the disease effectively.
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Leaf rot
Leaf rot
Leaf rot is a serious disease that affects Crepe myrtle. Caused by various fungi, it results in the decaying of plant tissues and eventual plant death. Prompt detection is crucial, followed by appropriate treatment and preventative measures.
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Brown blotch
Brown blotch
Brown spot is a fungal disease that significantly impacts the health of Crepe myrtle, causing brown blotches on the leaves, eventually leading to defoliation. The disease proliferates in warm, humid conditions, making management and prevention crucial.
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Dark spots
Dark spots, caused by infection, affect Crepe myrtle by discoloring its leaves. The disease is potentially lethal and may detrimentally affect the plant's health and appeal. Prompt identification and treatment are crucial for disease control.
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Yellow edges
Yellow edges is a common disease that affects Crepe myrtle, characterized by yellowing borders on leaves. Although not extremely lethal, this disease can severely impact the plant's aesthetic beauty and overall health. Factors such as fungal infections and unbalanced nutrition can cause the disease.
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Leaf wilting
Leaf wilting is a potentially harmful disorder that may affect Crepe myrtle, causing its leaves to droop, curl, and finally fall. The disease, often a sign of serious health problems, can lead to stunted growth or even death of the plant if not addressed timely.
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Wounds
Wounds on Crepe myrtle range from minor cuts to severe gashes and result primarily from improper pruning practices or physical damages. These injuries expose the plant to an array of pathogens, leading to diseases causing potential damage.
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Dark blotch
Dark blotch is a harmful disease affecting Crepe myrtle, causing severe damage to leaves, stems, and flowers. The pathogen responsible is the fungus Phomopsis spp., leading to reduced plant vigor and potentially plant death. Swift action is required to manage its impact.
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Leaf white mold
Leaf white mold is a dangerous fungal disease causing significant distress to Crepe myrtle. It is characterized by fluffy white growths on leaves and other parts of the plant, leading to premature yellowing, wilting, and even plant death if left untreated.
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Flower withering
Flower withering is a detrimental disease affecting Crepe myrtle that can severely damage the plant's blossoming performance. Caused by environmental stress or fungal pathogens, the disease evinces through withering or drying out of flowers, potentially leading to a loss in plant aesthetics and health.
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Flower wilting
Flower wilting is a disease that significantly impacts Crepe myrtle, causing its vibrant blossoms to droop and lose vitality. It's often triggered by factors such as fungi, bacteria, pests, or abiotic conditions, which can eventually lead to the plant's death if not promptly treated.
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Crepe Myrtle Watering Instructions
Crepe myrtle hails from regions in Asia, including China and Korea. It thrives in a variety of environments, such as forests, meadows, and hillsides, with well-drained soil. The plant prefers a moderate to high level of moisture, which is reflected in its watering needs. As it originates from areas with regular rainfall and relatively high humidity, it is important to provide consistent watering to mimic its native environment. The soil should be kept moist but not overly saturated to prevent waterlogging and root rot.
When Should I Water My Crepe Myrtle?
Importance of Proper Watering Timing
Timely watering is crucial for the overall health and longevity of the crepe myrtle. Appropriate irrigation encourages its optimal growth, produces lustrous leaves, and vibrant colors during its blooming season. Therefore, recognizing the signs that the crepe myrtle needs water is key to its thriving existence.
Leaf Wilting
Crepe myrtle's leaves can serve as a very reliable indicator of its water requirements. When the leaves start to wilt even during indirect sunlight and during the cooler part of the day, this is a strong indication that the plant is in need of water. Wilted leaves often appear droopy, may curl at the edges, and exhibit a less vibrant color.
Dry Soil
Test the soil around the crepe myrtle for dryness regularly. If the top two inches of soil are dry and powdery, it usually indicates that your crepe myrtle needs water. Touching the soil and feeling its moisture level can help gauge when it's time to water.
Bark Peeling
Peeling or splitting bark on the stem or branches of crepe myrtle is a subtle sign of water stress. A plant struggling for hydration often exhibits this symptom, so consider this a wake-up call to rehydrate your crepe myrtle.
Underdeveloped Blooms
Crepe myrtle is famous for its summer-long bloom bursts. If you notice its flowers are fewer, smaller, or less vibrant than usual, it may indicate it needs more water to sustain its reproductive efforts.
Risk of Improper Watering
Ignoring these signs can have detrimental effects on your crepe myrtle's health. Overwatering can lead to root rot and other fungal diseases, while chronic under watering can stunt growth, cause leaf fall, and even kill the plant. Therefore, being alert to these indicators and acting timely is vital for the plant’s maintenance and care.
Environmental factors
Lastly, remember that your crepe myrtle's water requirements can change based on the environment. More frequent watering may be necessary during hot, dry, windy weather when evaporation rates are high. Conversely, during colder months or in damp climates, the crepe myrtle might need less frequent watering. Always observe and respond to the plant's signs.
How Should I Water My Crepe Myrtle?
Watering Requirements
Crepe myrtle, has specific watering needs and sensitivities that should be considered for optimal hydration. It is important to provide consistent moisture without overwatering.
Watering Technique
One effective technique for watering crepe myrtle is to use a watering can with a narrow spout. This allows for targeted watering at the base of the plant, while avoiding excessive wetting of the foliage. It is important to water crepe myrtle thoroughly, ensuring that the water reaches the root zone.
Bottom-watering
Another suitable method for watering crepe myrtle is bottom-watering. This involves placing the pot of crepe myrtle in a tray or saucer filled with water and allowing the roots to absorb moisture from the bottom up. This technique helps to prevent overwatering and promotes deep root growth.
Moisture Meter
Using a moisture meter can be beneficial for accurately determining when water is needed for crepe myrtle. This tool measures the soil moisture level and helps avoid under or overwatering.
Avoid Foliage Watering
It is important to avoid wetting the foliage of crepe myrtle excessively, as this can lead to fungal diseases and other issues. Directing the water flow specifically to the base of the plant helps to minimize these risks.
Watering Frequency
The specific watering frequency for crepe myrtle may vary depending on factors such as climate, soil type, and pot size. It is recommended to monitor the moisture levels of the soil and water crepe myrtle when the top inch of soil feels dry. However, it is important to avoid allowing the soil to become completely dry, as this can stress the plant.
How Much Water Does Crepe Myrtle Really Need?
Introduction
Crepe myrtle is a plant native to eastern Asia and is commonly known as Crepe myrtle. It typically grows in warm, humid climates and can be found in a variety of habitats such as forests, grasslands, and along streams and riverbanks. Understanding its natural habitat can help determine its hydration needs for optimal growth.
Optimal Watering Quantity
Crepe myrtle prefers well-drained soil that is neither too dry nor too waterlogged. The watering amount can vary depending on factors such as pot size, root depth, and plant size. The general guideline for watering is to provide enough to thoroughly moisten the soil around the plant's root zone. For a small-sized crepe myrtle in a 6-inch diameter pot, watering with about 1 to 2 cups (237-474 ml) of water per watering session should be sufficient. For a larger crepe myrtle in a 12-inch diameter pot, watering with about 3 to 4 cups (710-946 ml) of water per session may be needed. It's essential to ensure the water reaches the bottom of the pot to fully hydrate the deep roots.
Signs of Proper Hydration
A well-hydrated crepe myrtle will have healthy, green leaves that are free from wilting or yellowing. The plant should appear vigorous and show continuous growth, with sturdy stems and branches. It should also produce an abundance of flowers during the blooming period. On the other hand, signs of overwatering may include yellowing leaves, leaf drop, or the presence of mold or fungus. Underwatering, on the other hand, can cause wilting, drooping leaves, and a general lack of vitality.
Risks of Improper Watering
Providing too much water to crepe myrtle can lead to waterlogged soil and root rot, which can damage or kill the plant. Overwatering can also promote the growth of fungal diseases and attract pests. On the contrary, underwatering crepe myrtle can cause the plant to become stressed, leading to stunted growth and reduced flowering. Insufficient water can also make the plant more susceptible to pest infestations and weaken its overall health.
Additional Advice
To ensure proper watering, it's important to monitor the moisture levels of the soil. Stick your finger about an inch into the soil. If it feels dry at that depth, it's time to water crepe myrtle. However, avoid watering if the soil feels adequately moist. It's also beneficial to mulch around the base of the plant to help retain moisture and regulate soil temperature. To maintain a healthy root system, consider providing occasional deep soakings to encourage the roots to grow deeper into the soil.
How Often Should I Water Crepe Myrtle?
Every 1-2 weeks
Watering Frequency
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Just like people, each plant has its own preferences and needs. Devote time to understanding your plants so you can nurture them properly. Observe your plants attentively, learning from their growth patterns, and becoming more in tune with their needs as you grow together. Keep a watchful eye on new plants and seedlings, as they are sensitive to both overwatering and underwatering. Shower them with gentle love and attention, fostering their growth and strength. Let the rhythm of your local climate guide your watering habits, adapting your schedule to the changing weather and the needs of your plants.
What Kind of Water is Best for Crepe Myrtle?
Water Type Guide for crepe myrtle
Water Sensitivity: Moderate - crepe myrtle prefers well-draining soil and should not be overly saturated with water.
Water Types
Rainwater: Best suited for crepe myrtle as it is natural, free of chemicals, and has a balanced pH level. Distilled Water: A suitable alternative to rainwater, as it is free of contaminants. Tap Water: Can be used if no other water sources are available, but it may contain chlorine and other harmful elements. Filtered Water: Another option, as long as it effectively removes contaminants without altering the pH.
Chlorine Sensitivity
Moderate - crepe myrtle can be sensitive to chlorine in tap water, which may cause leaf burn or stress to the plant. It is best to avoid direct exposure if possible.
Fluoride Sensitivity
Sensitive - crepe myrtle can be affected by high levels of fluoride in the water, leading to leaf discoloration or growth issues. It is advisable to minimize fluoride exposure.
Mineral Sensitivity
Low - crepe myrtle generally tolerates various minerals present in water, but excessive amounts of certain minerals like boron, zinc, or sodium can be detrimental to the plant's health.
Water Treatments
Dechlorination: It is recommended to let tap water sit out for 24 hours to allow chlorine to evaporate before using it on crepe myrtle. Alternatively, using a dechlorinator product can also help neutralize chlorine. Fluoride Removal: If fluoride levels are a concern, using a specialized filtration system or using rainwater/distilled water can be effective in reducing fluoride content. Reverse Osmosis: If tap water contains high mineral levels, utilizing a reverse osmosis filter can minimize mineral buildup.
Water Temperature Preferences
Moderate - crepe myrtle generally prefers water at room temperature (around 68-72°F or 20-22°C). Avoid using water that is too cold or too hot, as extreme temperatures can shock the plant.
How Do Crepe Myrtle's Watering Needs Change with the Seasons?
How to Water crepe myrtle in Spring?
In spring, crepe myrtle enters an active growth phase as it wakes from its winter dormancy. As a result, it will need additional water to support new shoots and flower buds. Water thoroughly when the top layer of soil feels dry to touch, ensuring you soak the roots without waterlogging the soil. This approach helps promote deep rooting, which is crucial as temperatures rise towards summer.
How to Water crepe myrtle in Summer?
During summer, crepe myrtle experiences its peak flowering season. High temperatures coupled with this active growth phase increase its need for water. Therefore, ensure the soil remains consistently moist, conducting deeper and less frequent watering as evaporative losses are high. However, be careful not to overwater, as this could lead to root rot and other water-related diseases.
How to Water crepe myrtle in Autumn?
Crepe myrtle's watering needs in autumn start to lessen as this plant begins preparing for the dormant winter period. While it's still essential to maintain a moist environment for the roots, refrain from excessive watering. Begin to gradually reduce watering frequency, allowing the soil to dry out more between each session. This shift aids in hardening off the plant, getting it ready for the colder months.
How to Water crepe myrtle in Winter?
Winter is the dormant period for crepe myrtle. Its biological activities slow down, and as a result, it requires considerably less water. Allow the soil to almost dry out before watering again but ensure that it never completely dries. Overwatering at this stage can be harmful, leading to root rot since the lowered metabolism of the plant can't use up the excess water.
What Expert Tips Can Enhance Crepe Myrtle Watering Routine?
Moisture Meter
Using a moisture meter can help assess crepe myrtle's deeper soil moisture needs and prevent over or under-watering. This plant prefers its soil to be mostly dry before the next watering, and a meter can effectively measure this.
Watering Time
Watering crepe myrtle early in the morning allows the water to penetrate the soil thoroughly before the high evaporation rates of mid-day. It also helps prevent fungal diseases by minimizing the plant's exposure to dampness.
Common Misconception
Many gardeners believe that crepe myrtle requires daily watering, as it thrives in wetter seasons. However, it's more drought-tolerant than perceived, and over-watering is a common mistake that can lead to root rot.
Assessing Soil Moisture
To determine if crepe myrtle needs watering, dig a few inches into the soil using a trowel or your finger. If the soil feels dry in the top couple of inches, it's time to water. However, if it still feels slightly moist, hold off on watering as the plant can tolerate some drying out.
Deep Watering
When watering crepe myrtle, it's important to provide a deep watering rather than a light spritz. This encourages the plant's roots to grow deeper and become more drought-tolerant. Apply water slowly at the base of the plant until moisture reaches a depth of 6-8 inches.
Mulching
Applying a layer of mulch around the base of crepe myrtle helps retain soil moisture, regulate temperature, and suppress weed growth. Use organic mulch, such as wood chips or shredded bark, and spread it 2-4 inches thick around the plant.
Watering Frequency
The watering frequency for crepe myrtle can vary depending on factors like weather, soil type, and age of the plant. As a general guideline, water young plants more frequently, every 2-3 days, until they establish a strong root system. Mature plants usually need watering every 7-10 days.
Adjusting Watering in Special Conditions
During a heatwave, crepe myrtle may require more frequent watering to combat the increased evaporation and higher water demand. If the plant is stressed due to extended rain, reduce watering frequency and ensure proper drainage to avoid waterlogged soil.
Thirst and Over-Watering Signs
When crepe myrtle is thirsty, its leaves may start to curl or wilt. However, if the leaves are turning yellow or developing mold, it could be a sign of over-watering. Adjust the watering accordingly to meet the plant's needs and avoid excessive moisture.
Using Drip Irrigation
Consider using drip irrigation for crepe myrtle to ensure efficient water delivery directly to the root zone. This method minimizes water loss through evaporation and keeps the foliage dry, reducing the risk of disease. Install drippers or soaker hoses near the base of the plant.
Watering in Winter
During the winter months when crepe myrtle is dormant, reduce the frequency of watering. Water deeply once a month, allowing the soil to dry out between waterings. Avoid watering when the weather is freezing to prevent root damage.
Considering Hydroponics? How to Manage a Water-Grown Crepe Myrtle?
Overview of Hydroponics
Crepe myrtle is a plant that can be successfully grown using hydroponics, a method of cultivating plants without soil by providing all necessary nutrients through a water-based solution. Hydroponics offers several advantages such as faster growth, higher yield, and greater control over nutrient availability.
Best Hydroponic System for crepe myrtle
The nutrient film technique (NFT) is the most suitable hydroponic system for growing crepe myrtle. NFT involves a shallow channel where a thin film of nutrient solution continuously flows over the roots. This system provides ample oxygen and nutrient availability for optimal crepe myrtle growth.
Nutrient Solution Requirements
Crepe myrtle prefers a balanced nutrient solution with a pH range of 5.8-6.2 for optimal growth. The solution should contain a blend of macronutrients (nitrogen, phosphorus, potassium) and micronutrients (iron, copper, zinc) in appropriate concentrations. The ideal nutrient concentration for crepe myrtle is 800-1000 ppm (parts per million). The nutrient solution should be changed every 1-2 weeks to prevent nutrient imbalances and ensure continuous uptake.
Challenges in Hydroponic Cultivation
When growing crepe myrtle hydroponically, the main challenges include root rot due to overwatering or inadequate oxygenation, nutrient imbalances leading to deficiencies or toxicity, and providing sufficient light intensity for healthy growth. Additionally, maintaining proper humidity levels and preventing pest infestations are important considerations.
Monitoring crepe myrtle's Health
Monitor the health of crepe myrtle in a hydroponic setup by observing signs of stress such as wilting, discoloration, or stunted growth. Check the pH levels of the nutrient solution regularly and adjust as necessary. Keep a close eye on root health and oxygenation to prevent root rot. Regularly inspect for any pest activity or disease symptoms.
Adjusting Hydroponic Environment for crepe myrtle
Throughout crepe myrtle's growth stages, adjust the hydroponic environment to meet its specific needs. During the vegetative stage, provide a higher nitrogen concentration to promote lush foliage growth. In the flowering stage, adjust the nutrient solution to provide a higher phosphorus and potassium concentration for healthy flower development. Maintain consistent lighting and temperature conditions throughout the plant's life cycle.
Light Requirements
Crepe myrtle requires a minimum of 12-14 hours of light per day for healthy growth. Use high-intensity grow lights, such as LED or fluorescent lights, positioned at the appropriate distance to provide sufficient light intensity. Consider using a timer to ensure consistent and controlled lighting.
Humidity and Temperature
Crepe myrtle thrives in a humidity range of 50-70%. Maintain a temperature range of 70-85°F (21-29°C) during the day for optimal growth. Provide proper ventilation and air circulation to prevent excess humidity and minimize the risk of fungal diseases.
Key Points for crepe myrtle in Hydroponics
{'Hydroponic System': 'Nutrient film technique (NFT)', 'Nutrient Solution': 'Balanced with a pH of 5.8-6.2 and concentration of 800-1000 ppm', 'Nutrient Solution Change Frequency': 'Every 1-2 weeks', 'Lighting Requirements': 'Minimum 12-14 hours of high-intensity grow lights', 'Temperature Range': '70-85°F (21-29°C)', 'Humidity Range': '50-70%'}
Important Symptoms
Overwatering Symptoms of Crepe myrtle
Crepe myrtle is more susceptible to developing disease symptoms when overwatered because it prefers a soil environment with moderate humidity. Symptoms of overwatering include yellowing leaves, root rot, leaf drop...
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(Symptom details and solutions)
Yellowing leaves
When plants receive too much water, the roots become oxygen deprived and the bottom leaves of the plant gradually turn yellow.
Root rot
Excess water in the soil can lead to the growth of harmful fungi and bacteria, causing the roots to rot and eventually kill the plant.
Leaf drop
When plants are overwatered, they may shed their leaves as a response to stress, even if the leaves appear green and healthy.
Mold and mildew
Overwatered plants create a damp environment that can encourage the growth of mold and mildew on soil.
Increased susceptibility diseases
Overwatering plants may become more susceptible and diseases as their overall health declines, weakening their natural defenses.
Solutions
1. Adjust watering frequency based on seasons and soil dryness. Wait for soil to dry before watering.2. Increase soil aeration by loosening surface and gently stirring with a wooden stick or chopstick.3. Optimize environment with good ventilation and warmth to enhance water evaporation and prevent overwatering.
Underwatering Symptoms of Crepe myrtle
Crepe myrtle is more susceptible to plant health issues when lacking watering, as it can only tolerate short periods of drought. Symptoms of dehydration include wilting, yellowing leaves, leaf drop...
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(Symptom details and solutions)
Wilting
Due to the dry soil and insufficient water absorption by the roots, the leaves of the plant will appear limp, droopy, and lose vitality.
Root damage
Prolonged underwatering can cause root damage, making it difficult for the plant to absorb water even when it is available.
Dry stems
Due to insufficient water, plant stems may become dry or brittle, making the branches easy to break.
Dying plant
If underwatering continues for an extended period, the plant may ultimately die as a result of severe water stress and an inability to carry out essential functions.
Solutions
1. Thoroughly saturate soil with slow ring watering to ensure uniform and sufficient moisture for plants. 2. Increase air humidity with water trays or misting to slow leaf water evaporation. 3. Watering according to the recommended frequency.Adjust watering frequency based on seasons and soil dryness.
Watering Troubleshooting for Crepe Myrtle
Why are the leaves of my crepe myrtle turning yellow?
Yellow leaves on your crepe myrtle can be a sign of over-watering. This plant prefers well-drained soil and can suffer from root rot if watered too frequently. Cut back on watering, allowing the soil to dry out slightly between watering sessions.
My crepe myrtle's leaves are wilting, what could be the problem?
Wilting leaves can be a symptom of under-watering. The crepe myrtle needs regular watering, especially in dry spells. Be sure to thoroughly soak the ground around the plant. However, remember not to water the foliage, as this can cause mildew.
What should I do if the leaves of my crepe myrtle are turning brown and dropping off?
Brown leaves that drop off can indicate that your crepe myrtle is not getting enough water. If this happens, water the plant deeply for a few days in a row and then return to regular watering practices. It is ideal to water the plant early morning so that the moisture can be absorbed before evaporation.
Can over-watering cause my crepe myrtle to have stunted growth?
Yes, over-watering can cause stunted growth in crepe myrtle. This plant doesn't like 'wet feet' and needs to be in a location where the soil can drain properly. If it's constantly in soggy soil, it will struggle to grow. If you think you've been over-watering, reduce your watering schedule and ensure your plant's location has good drainage.
Why does my crepe myrtle have black spots on the leaves?
Black spots on the leaves of your crepe myrtle can be a sign of a fungal disease, often prompted by too much moisture on the leaves. Always water at the base of the plant to avoid wetting the leaves, and prune regularly to increase airflow and reduce the likelihood of fungal diseases.
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Lighting
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Requirements
Full sun
Ideal
Above 6 hours sunlight
Partial sun
Tolerance
About 3-6 hours sunlight
Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness.
Essentials
Crepe myrtle thrives in areas drenched in sunlight for most of the day and can survive in places where sunlight is scattered or filtered through taller structures. Originating from a habitat bathed in ample daylight, it adapts adequately to less sunny situations. However, reduced light contribution might affect its ability to flourish, whilst excessive sunlight might cause light stress and impede growth.
Preferred
Tolerable
Unsuitable
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Artificial lighting
Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
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Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.
Important Symptoms
Symptoms of Insufficient Light in %s
Crepe myrtle thrives in full sunlight but is sensitive to heat. As a plant commonly grown outdoors with abundant sunlight, it may exhibit subtle symptoms of light deficiency when placed in rooms with suboptimal lighting.
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Small leaves
New leaves may grow smaller in size compared to the previous ones once they have matured.
Leggy or sparse growth
The spaces between leaves or stems of your crepe myrtle may become longer, resulting in a thin and stretched-out appearance. This can make the plant look sparse and weak, and it may easily break or lean due to its own weight.
Faster leaf drop
When plants are exposed to low light conditions, they tend to shed older leaves early to conserve resources. Within a limited time, these resources can be utilized to grow new leaves until the plant's energy reserves are depleted.
Slower or no new growth
Crepe myrtle enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.
Lighter-colored new leaves
Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.
Solutions
1. To ensure optimal growth, gradually move plants to a sunnier location each week, until they receive at least 6 hours of direct sunlight daily. Use a south-facing window and keep curtains open during the day for maximum sunlight exposure and nutrient accumulation.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.
Symptoms of Excessive light in %s
Crepe myrtle thrives in full sun exposure but is sensitive to heat. Although sunburn symptoms occasionally occur, they are unable to withstand intense sunlight in high-temperature environments.
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Chlorosis
Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.
Sunscald
Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.
Leaf Curling
Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.
Wilting
Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.
Leaf Scorching
Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.
Solutions
1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.
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Temperature
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Requirements
Ideal
Tolerable
Unsuitable
Just like people, each plant has its own preferences. Learn about your plants' temperature needs and create a comforting environment for them to flourish. As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share. Lovingly monitor the temperature around your plants and adjust their environment as needed. A thermometer can be your ally in this heartfelt endeavor. Be patient and gentle with yourself as you explore your plants' temperature needs. Cherish your successes, learn from challenges, and nurture your garden with love, creating a haven that reflects the warmth of your care.
Essentials
Crepe myrtle requires a temperature between 50 to 95 ℉ (10 to 35 ℃), which is suitable in its native growth environment. During summer, it prefers cooler temperatures and tolerates high heat and drought. In winter, it goes dormant and can withstand freezing temperatures. It can be adjusted in temperature through proper watering and shading.
Regional wintering strategies
Crepe myrtle has strong cold resistance, so special frost protection measures are usually not necessary during winter. However, if the winter temperatures are expected to drop below {Limit_growth_temperature}, it is still important to provide cold protection. This can be achieved by wrapping the trunk and branches with materials such as non-woven fabric or cloth. Before the first freeze in autumn, it is recommended to water the plant abundantly, ensuring the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.
Important Symptoms
Symptoms of Low Temperature in Crepe myrtle
Crepe myrtle is cold-tolerant and thrives best when the temperature is above {Suitable_growth_temperature_min}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, although there may not be any noticeable changes during winter, the branches may become brittle and dry during springtime, and no new shoots will emerge.
Solutions
In spring, prune away any dead branches that have failed to produce new leaves.
Symptoms of High Temperature in Crepe myrtle
During summer, Crepe myrtle should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the leaves of the plant may become lighter in color, the tips may become dry and withered, and the plant becomes more susceptible to sunburn.
Solutions
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.
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