Elm cultivar
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]
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
- Europe
References
- ^ a b Morton Arboretum plant database, 2015. [1]