American Elm
DOWNLOADMarch 11, 2016 - Bert Cregg
Ulmus americana
- Height: 70’
- Site characteristics: Rich, well-drained soils
- Zone: 4 for most cultivars
- Wet/dry: Tolerates intermittent flooding and drought once established
- Native range: Eastern United States
- Salt: Moderate tolerance
- pH: 5.0 - 8.2
- Shape: Upright vase
- Cultivars: A variety of Dutch elm disease-resistant cultivars are now available in the nursery market. These include selections of American elm (Ulmus americana) that have been identified as Dutch elm disease-tolerant through intensive, long-term screening programs. ‘Valley Forge’ – green summer foliage, changing to yellow in fall. National Arboretum introduction. Best Dutch elm disease-tolerance among American elms tested. Zone 5. ‘New Harmony’ – second to Valley Forge in Dutch elm disease tolerance. More attractive foliage and better nursery form than ‘Valley Forge’. Zone 4.
- Additional: Transplant in spring
- Pests: Elm leaf beetles
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