Different from the species because this cultivar has a regular crown with a straight, upright growing central leader. This makes the oval open crown more compact. Height 10 - 12 m. 'Imperial' has a grey bark with shallow fissures and no spines. The 15 - 20 cm large, compound leaf unfolds late. Young twigs and young foliage are red brown. The single leaflets are circa 3 cm and turn golden yellow in autumn. After the flowering only a few, crescent-shaped and twisted pods appear, they are circa 30 - 40 cm and persist long. Good avenue and street tree with a deep rooting root system with many rootlets. Winter hardiness zone: 5a
usually not toxic to people, (large) pets and livestock
Soil type
loamy soil, sandy soil, calcareous soil
Soil moisture
suitable for dry soil
Paving
tolerates paving
Winter hardiness zone
5a (-28,8 to -26,1 °C)
Wind resistance
good
Other resistances
resistant to frost (WH 1 - 6), can withstand wind, resistant to de-icing salt
Fauna tree
valuable for bees (honey plant)
Application
avenues and broad streets, tree containers
Shape
clearstem tree, multi-stem treem
Clear stem treeMulti-stem treecalcareous soilloamy soilsandy soiltolerates pavinglight-lovingresistant to de-icing saltresistant to frost (WH 1 - 6)suitable for dry soilcan withstand windoval2nd size, between 6 and 12 metresopen crowngreenyellowgreenlate sproutfast growingFeathered leafAttractive autumn colourvaluable for bees (honey plant)non-toxic (usually)Tree for the future
Frequently asked questions
Gleditsia triacanthos 'Imperial'
Gleditsia triacanthos 'Imperial' can eventually reach a height of 10-12 m, fast growing, depending on the site and climate conditions.
Gleditsia triacanthos 'Imperial' is fast growing and can eventually reach a height of 10-12 m, fast growing, depending on the site and climate conditions.
The leaves of Gleditsia triacanthos 'Imperial' turn yellow in autumn.
The right time to plant Gleditsia triacanthos 'Imperial' is during the dormancy period. In Western Europe, Gleditsia triacanthos 'Imperial' 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.