Ulmus americana
American Elm
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American Elm (Ulmus americana) - Description
Ulmus americana, generally known as the American elm or, less commonly, as the white elm or water elm, is a species native to eastern North America, occurring from Nova Scotia west to Alberta and Montana, and south to Florida and central Texas. The American elm is an extremely hardy tree that can withstand winter temperatures as low as −42 °C (−44 °F).
American Elm (Ulmus americana) - Blooming
The flowers are mostly insignificant, but they result in papery fruits that are very messy and come spring.
American Elm (Ulmus americana) - Growth
Deciduous trees. Some species are semi-evergreen trees and shrubs, but they are very rare. Elms do best in full sun or partial shade. They are very large trees with some reaching over 100 ft. tall and can spread just as wide and sometimes wider. Ulmus works best as an ornamental tree. U. x hollandica is appropriate in a shrub border or as a hedge.
American Elm (Ulmus americana) - Planting
Propagate from the seed in fall or spring. Sow in containers outdoors. Can also propagate from greenwood cuttings in summer or from suckers in fall. Weeping trees should be budded in summer or grafted in winter.
American Elm (Ulmus americana) - Pest
Dutch Elm disease, spread by bark beetles, has devastated American elms. Asiatic elms are the most disease resistant, and thus new breeds have been selected to spread this resistance to American elms. Beyond this disease many other pests are attracted to the trees: beetles, leafhoppers, aphids and scale insects.
American Elm (Ulmus americana) - Interesting facts
Ulmus is native to the woodland thickets and hedgerows of Northern temperate areas.
American Elm (Ulmus americana) - Soil and irrigation
Is not particularly fussy about soil type, but does require moist soil with good drainage. Needs regular water.
