Small tree up to 8 m with a round crown and pendulous branches. The young twigs are purple to brown: older branches have grey, somewhat peeling bark. The large, glossy, dark green leaves produce splendid red to purple autumn colours. The flower panicle has a diameter of 6 to 10 cm. Each flower head is surrounded by 4 large, rather rounded bracts. The bracts are white and slightly grooved: the tips are somewhat folded back. ‘Ascona’ is a hybrid of C. florida and C. nuttallii, and most resembles C. nuttallii. However, the tree is sterile and more healthy.
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usually not toxic to people, (large) pets and livestock
Soil type
loamy soil, sandy soil, peaty soil, acid soil
Paving
tolerates no paving
Winter hardiness zone
7a (-17,7 to -15,0 °C)
Wind resistance
moderate
Fauna tree
valuable for butterflies
Application
small gardens, patio gardens
Shape
clearstem tree, multi-stem treem
Synonyms
Cornus nuttallii 'Ascona'
Clear stem treeMulti-stem treeacid soilloamy soilpeaty soilsandy soiltolerates no pavingsuitable for shadowflatened sphericalround/spherical3rd size, smaller than 6 metreshalf-open crowngreenwhiteMayaverage growingConspicuous bloomall speciesvaluable for butterfliesnon-toxic (usually)Fruitless cultivar
Frequently asked questions
Cornus 'Ascona'
Cornus 'Ascona' can eventually reach a height of 6-8 m, depending on the site and climate conditions.
Cornus 'Ascona' is average growing and can eventually reach a height of 6-8 m, depending on the site and climate conditions.
The right time to plant Cornus 'Ascona' is during the dormancy period. In Western Europe, Cornus 'Ascona' 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.