Ulmus 'Improved Coolshade'

Ulmus hybrid
Hybrid parentage U. rubra × U. pumila
Cultivar 'Improved Coolshade'
Origin Sarcoxie, Missouri, USA

A superior selection from the American hybrid cultivar Ulmus 'Coolshade' (U. rubra × U. pumila), Ulmus 'Improved Coolshade' was patented and released by the Sarcoxie Nurseries, Sarcoxie, Missouri, in 1958.

Description

The tree is similar to 'Coolshade', but faster growing.

Pests and diseases

Although reputedly resistant to Dutch elm disease, it had not been (by 1995) widely tested.[1]

Cultivation

'Improved Coolshade' was noted for its drought tolerance. It is not known whether the tree remains in cultivation in North America, nor whether it was introduced to Europe or Australasia.

Synonymy

References

  1. Santamour, F. S., & Bentz, S. E. Updated checklist of elm (Ulmus) cultivars for use in North America. Journal of Arboriculture, 21(3): May, 1995


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