Ulmus 'Improved Coolshade'
- Ulmus 'Improved Coolshade'
Infobox Cultivar | name = "Ulmus" hybrid
hybrid = "U. rubra" × "U. pumila"
cultivar = 'Improved Coolshade'
origin = Sarcoxie, Missouri, USA A superior selection from 'Coolshade', 'Improved Coolshade' was patented and released by the Sarcoxie Nurseries in 1958.
Description
Similar to 'Coolshade', but faster growing.
Pests and diseases
Although reputedly resistant to Dutch elm disease, it had not been (by 1995) widely tested [Santamour, F. S., & Bentz, S. E. Updated checklist of elm (Ulmus) cultivars for use in North America. "Journal of Arboriculture", 21(3): May, 1995] . ]Cultivation
Noted for its drought tolerance; it is not known whether the tree remains in cultivation.
ynonymy
*'Primus' (earlier name for the cultivar).
References
Wikimedia Foundation.
2010.
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