- Ulmus 'Coolshade'
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Ulmus hybrid
'Coolshade', Tenantry Down Road, Brighton. Photo: Ronnie Nijboer, Bonte Hoek kwekerijenDetails Hybrid parentage U. rubra × U. pumila Cultivar 'Coolshade' Origin Sarcoxie, Missouri, USA The American hybrid cultivar Ulmus 'Coolshade' was cloned from a crossing of the Slippery, or Red, Elm Ulmus rubra and the Siberian Elm Ulmus pumila at the Sarcoxie Nurseries, Sarcoxie, Missouri, in 1946.
Contents
Description
Described as a being of rapid, stocky growth with a compact crown resistant to breakage under ice and snow, its foliage a very dark green.[1][2]
Pests and diseases
Reputedly tolerant of Dutch elm disease, 'Coolshade' has not been tested by inoculation to determine the degree of resistance.
Cultivation
'Coolshade' was raised to create a disease-resistant tree that would not suffer the storm damage frequently sustained by the weak-wooded U. pumila. The tree was introduced to the UK in the 1960s (examples in Tenantry Down Road, Brighton).
Cultivars
Accessions
North America
- Arnold Arboretum. Acc. no. 561-48
Europe
- Brighton & Hove City Council, UK, NCCPG Elm Collection [2] (two examples, at Ryecroft and Tenantry Down Road, Brighton).
References
Categories:- Elm cultivars
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