The Japanese Elm cultivar Ulmus davidiana var. japonica 'Freedom' is another cold-resistant selection from Canada, raised along with 'Discovery' in the 1980s by Dr Wilbert Ronald, of Jeffries Nurseries Ltd., and Rick Durand of Shade Consulting Services, Portage la Prairie, Manitoba [3].
| Ulmus davidiana var. japonica 'Freedom' | |
|---|---|
| Variety | Ulmus davidiana var. japonica |
| Cultivar | 'Freedom' |
| Origin | Canada |
Description
editLittle descriptive information is available, beyond its comparison with the 'Discovery' clone in the latter's patent application, in which it is noted that 'Freedom' has an open crown with codominant lateral branching, and leaves tinged reddish-purple in autumn.[1][2][3] The species does not sucker from roots.[4]
Pests and diseases
editThe tree has a similar resistance to Dutch elm disease and elm leaf beetle Xanthogaleruca luteola as 'Discovery'.
Cultivation
edit'Freedom' is not known to be in cultivation beyond Canada.
Accessions
editNone known.
Nurseries
editNorth America
editReferences
edit- ^ Photograph of 'Freedom' elms, [1].
- ^ [2] Photograph of 'Freedom', Todd P. West, 'Elms: the Good, the Bad and the Ugly'; North Dakota State University Department of Plant Sciences; November 2022; p.26
- ^ Japanese elm tree named 'Discovery'; freepatents online.com
- ^ Heybroek, Hans M. (1981). "The Japanese elm species and their value for the Dutch elm breeding program" (PDF). Proceedings of the Dutch Elm Disease symposium and workshop, October 5–9, Winnipeg, Manitoba: 78–90.
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