Ulmus davidiana var. japonica 'Validation'
The Japanese Elm cultivar Ulmus davidiana var. japonica 'Validation' is a selection made by Kunso Kim and Bethany Brown of the Morton Arboretum released in 2011; propagation is by grafting onto Siberian Elm Ulmus pumila rootstocks. [1]
| Ulmus davidiana var. japonica 'Validation' | |
|---|---|
| Variety | Ulmus davidiana var. japonica |
| Cultivar | 'Validation' |
| Origin | Morton Arboretum, Illinois, US |
Description
'Validation' is a vase-shaped tree, the trunk bark smooth and gray. The current year's twigs are light green, contrasting with the previous year's, which are greenish brown.[1]
Pests and diseases
Not known.
Cultivation
The tree is very rare in cultivation beyond the Morton Arboretum.
Accessions
- North America
- Morton Arboretum, Illinois, US. Acc. No. 22-2008, one plant.
- Europe
- Grange Farm Arboretum, Lincolnshire, UK. Acc. no. 1126.
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