Closed, broad pyramidal tree 15 - 18 m high. It is a vigorous grower with a vertical trunk and a squat, irregular crown. The twigs have no thorns. The irregularly shaped leaves hang on a long leaf stem and consist of a strikingly large top leaf (to approx. 15 cm) and 1 to 3 pairs of small side leaves. In the autumn the greyish green leaves turn yellow. 'Unifoliola' leafs out late in the spring and keeps its leaves remarkably long into the autumn. Produces large flower clusters of approx. 15 cm in June. The flowers are white and aromatic. 'Unifoliola' is sensitive to wind. Winter hardiness zone: 5a
Our trees can only be planted when they don't have any leaves. Due to the this we will start delivering again from November 2024.
twigs olive green to brown, thornless, bark grey-brown, deeply grooved
Leaf
odd-pinnate, 15 - 25 cm, 3 - 7 leaf segments, terminal leaflet to about 15 cm long, green, feathered leaf
Flowers
In pendent racemes to 15 cm, white, about 2 cm, fragrant, June, fragrant flowers
Fruits
flat leathery pod, reddish brown, 5 - 10 cm
Spines/thorns
None
Toxicity
has toxic components
Soil type
few requirements as long as well drained
Soil moisture
suitable for dry soil
Paving
tolerates paving
Winter hardiness zone
5a (-28,8 to -26,1 °C)
Wind resistance
poor to moderate
Other resistances
resistant to frost (WH 1 - 6), resistant to de-icing salt
Fauna tree
valuable for bees (honey plant), valuable for butterflies
Application
avenues and broad streets, industrial areas
Shape
clearstem tree
Origin
Pépinières Deniaux, Maine-et-Loire, France, circa 1858
Synonyms
Robinia pseudoacacia var. monophylla
Clear stem treecalcareous soilclay soilloamy soilnutrient-poor soilsandy soiltolerates pavinglight-lovingresistant to de-icing saltresistant to frost (WH 1 - 6)suitable for dry soilbroad conical1st size , taller than 12 metreshalf-open crowngreenwhiteJuneaverage growingConspicuous bloomFeathered leafvaluable for bees (honey plant)valuable for butterfliestoxic componentsFragrant flowersTree for the future
Frequently asked questions
Robinia pseudoacacia 'Unifoliola'
Robinia pseudoacacia 'Unifoliola' can eventually reach a height of 15 - 18 m, depending on the site and climate conditions.
Robinia pseudoacacia 'Unifoliola' is average growing and can eventually reach a height of 15 - 18 m, depending on the site and climate conditions.
The right time to plant Robinia pseudoacacia 'Unifoliola' is during the dormancy period. In Western Europe, Robinia pseudoacacia 'Unifoliola' with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.