Wilson Elm

Growth habit

Tree

Perennation

Perennial

Location

Sculpture Garden, Treman Woodland Walk

Source of plant

Arborvillage Farm Nursery

Description

One selection of a breeding program at the U.S. National Arboretum focused on using disease- and insect-resistant Asian elms. A vase-shaped tree the crown becoming pendulous much lower than that of U. americana, reaching a height of 50' and a width of 25'. Canopy very dense, the leaves large, oblong-obovate, about 4.5" long and 3.3" wide, emerging orange-red and maturing to green, becoming yellow in fall. Tolerates both dry and flooded conditions. Has shown no symptoms of DED when inoculated with Ceratocystis ulmi; displays high resistance to elm leaf beetle, and appears to be highly tolerant of natural infections of elm yellows (ds 348). Selected in 1975 from and 1965 planting of U. wilsoniana seedlings in Delaware, Ohio by A.M. Townsend and L.R. Schreiber. NA 55398 and PI 536050 (DS 666).

USDA Hardiness Zone

5

Special characteristics

environmental stress resistance, disease resistance