Robinia ambigua 'Decaisneana' – Robinia pseudoacacia 'Semperflorens'

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Robinia ambigua 'Decaisneana' – Robinia pseudoacacia 'Semperflorens'

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An old, vigorously growing cultivar with a loose crown. At first it is narrow and oval, later becoming somewhat broader. Height 18 - 20 (25) m. The crown has a more regular shape than that of the species and the twigs have few to no thorns. The leaves and flowers are similar to those of the species. 'Semperflorens' blooms much more profusely, however. A less profuse flowering follows every year in August and September. Consequently, it has become popular for use as a park and avenue tree. Its open crown makes the tree reasonably to highly wind-resistant. Winter hardiness zone: 5a
Availability
Multi-stem (1)
Specifications
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Height
18-20 m
Width
10-15m
Crown
oval, half-open crown
Bark and branches
brown, grey
Leaf
green, feathered leaf
Autumn colour
yellow
Flowers
cream white, flowers in June, fragrant flowers
Fruits
reddisch brown
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
clayed soil, loamy soil, sandy soil, nutrient-poor soil, calcareous soil
Soil moisture
suitable for dry soil
Paving
tolerates paving
Winter hardiness zone
3 (-40,0 to -24,5 °C)
Wind resistance
fairly to good
Other resistances
resistant to frost (WH 1 - 6)
Fauna tree
valuable for bees (honey plant)
Application
parks, cemeteries, coastal areas, industrial areas, large gardens
Shape
clearstem tree, multi-stem treem
Clear stem tree Multi-stem tree clay soil loamy soil sandy soil tolerates paving resistant to frost (WH 1 - 6) suitable for dry soil oval vase-shaped 2nd size, between 6 and 12 metres half-open crown green pink July June average growing Conspicuous bloom Feathered leaf valuable for bees (honey plant) non-toxic (usually) Capricious growing Ornamental fruit
Frequently asked questions
Robinia ambigua 'Decaisneana'

Robinia ambigua 'Decaisneana' can eventually reach a height of 18-20 m, depending on the site and climate conditions.

Robinia ambigua 'Decaisneana' is average growing and can eventually reach a height of 18-20 m, depending on the site and climate conditions.

The leaves of Robinia ambigua 'Decaisneana' turn yellow in autumn.

The right time to plant Robinia ambigua 'Decaisneana' is during the dormancy period. In Western Europe, Robinia ambigua 'Decaisneana' 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.

Robinia ambigua 'Decaisneana' blooms in june, july.
General