Princeton (elm cultivar)
From Wikipedia, the free encyclopedia
| Ulmus americana Princeton |
|---|
 |
| Cultivar |
| Princeton Elm |
| Origin |
| Princeton, USA |
The Princeton Elm is a cultivar of the American Elm U. americana originally selected in 1920 by a New Jersey grower for its landscape qualities. In 1932 the tree was planted along two streets in Princeton, and these survive to this day [1] unaffected by disease. Testing in laboratory conditions by the United States Department of Agriculture (USDA) in the 1990s revealed that this cultivar has considerable resistance to Dutch elm disease and consequently it has been raised for commercial sale again on both sides of the Atlantic. In 2006 it was selected by HRH The Prince of Wales to create an avenue from his residence Highgrove House to the Golden Bird statue at the boundary of the garden. It has also been chosen to replace elms killed by disease along Pennsylvania Avenue in front of the White House.
In trials conducted by Butterfly Conservation in Hampshire, England, it was found to grow strongly on moderately-drained Reading Beds, but more slowly on chalk. A specimen planted circa 2002 can be seen at the Royal Horticultural Society gardens at Wisley (bed WA 0201).
[edit] References
- Santamour, J., Frank, S. & Bentz, S. (1995). Updated checklist of elm (Ulmus) cultivars for use in North America. Journal of Arboriculture, 21:3 (May 1995), 121-131. International Society of Arboriculture, Champaign, Illinois, USA.
- Smalley, E. B. & Guries, R. P. (1993). Breeding Elms for Resistance to Dutch Elm Disease. Annual Review of Phytopathology Vol. 31 : 325-354. Palo Alto, California.
- Townsend, A. M., Bentz, S. E., and Douglass L. W. (2005). Evaluation of 19 American Elm Clones for Tolerance to Dutch Elm Disease. Journal of Environmental Horticulture, March 2005, Horticultural Research Institute, Washington, D.C.
