As with the ‘American Elm’, crotch and structure weakness can be strengthened with pruning when young. By taxa, trunk diameter growth ranged from a low, by ‘JFS Bieberich’ elm (0.7 cm/year), to … The wood of Americana elm is light in color, heavy, hard, strong and tough with interlocked grain. The small green flowers appear early in the spring before the leaves expand; the spring maturing seeds are a 1-seeded samara about 1/2 inch in diameter with a deep notch extending almost to the seed cavity. Growing 3-6 feet each year once established, you’ll have a classic American shade tree in your yard in no time at all. The drake elm (also called Chinese elm or lacebark elm) is a quick-growing elm tree that naturally develops a dense, rounded, umbrella shaped canopy. 'Valley Forge' American Elm, Ulmus americana — After 20 years of testing by the U.S. National Arboretum, ‘Valley Forge’ has shown a 96 percent survival rate to Dutch elm disease. This plant … Elm saplings are also one of deer’s favorite foods, so protect young elm trees or use a repellant. ALLEE was cloned from a tree … As with most fast growing trees, the American Elm’s wood is weak and susceptible to breakage. American Elm is a deciduous tree that may grow 80 to 100 feet tall. The base of the leaf is unequal and the surface of the leaf varies from smooth to very hairy. Even though Dutch elm disease has killed most of the large elm in Iowa, American elm is still a component of woodlands in the state. If pruned diligently in the first ten years, a strong structure and vase shape should maintain itself. The Princeton Elm is … American Elm (White Elm) Latin Name: Ulmus americana: Tree Size: Large : Leaf Type: Deciduous : Growth Rate: Rapid : Water Needs: Moderate: Tolerances: Salty soil or sea-spray, drought, alkaline … The easy to grow, very hardy and tolerant tree will live for 300 years or more. The trunk will naturally divide into several large ascending limbs, producing gracefully drooping branchlets. Elms are adaptable to adverse soil conditions. Its preferred habitat is moist slopes, bottomlands and along streams and draws. 339 Science II More information will be added as it is available. The leaves of American elm are alternate in arrangement, oval, sharp pointed with double-toothed margins, and have prominent midrib and lateral veins. Harsh pollution does not bother ‘Princeton’ other than sulfur dioxide pollution, making it an excellent choice in cities. It has a classic American elm shape and tolerates drought, poor soils, air pollution and salts. Princeton Elm is an American Elm selected for its vigorous, upright symmetrical habit. Further, the growth rates of species within genera can vary significantly." Like the other American elms, ‘Princeton’ is tolerant of road salt and urban conditions, serving well as a shade tree or boulevard tree. Most of the large trees are gone, except for a few vintage survivors which have managed to escape the disease. An extremely hardy and adaptable shade tree with an upright vase-shaped habit of growth and a very dense branching structure; this tree is probably the best choice for modern landscapes due to its high D.E.D resistance; a classic appearance. ‘Jefferson’ grows in the classic American elm vase shape reaching nearly 70’ tall. Plant your Princeton Elm this year. Can be found throughout Iowa. Leaves turn a pleasant yellow in autumn. A North American native, this fast-growing deciduous tree is quickly identified by the corky, wing-like projections which appear on opposite sides of twigs and branches. Once a strong crotch has developed, prune off all branches below the crotch. ‘Princeton’s’ disease tolerance is comparable to ‘Valley Forge’, showing moderate to high resistance to Dutch Elm disease as well as elm leaf beetle. If fruit production is a concern, plant American Elm cultivars like Valley Forge Elm individually to avoid cross pollination. The size of … These blooms are followed by green, wafer-like seedpods which m… Prairie Expedition – A 2004 North Dakota State University selection. The American Elm cultivar Ulmus americana 'St. It grows quickly, reaching about 25 feet tall with a crown spread of 15 feet within 20 years. The trees grows quickly, once established will grow as much as 3 feet per year. The five-inch-long, deciduous leaves are dark green throughout the year, fading to yellow before dropping in fall. Princeton – Selected in 1922. This large, fast-growing tree is tolerant of many adverse site conditions. A graceful tree that forms a rounded canopy with arching branches. A prime example of the species was the Sauble Elm, w… Its large, dark green foliage forms a dense canopy turning yellow in fall. Its loss was a serious blow to communities in Iowa both in terms of removal costs and how to replace its many shade tree benefits. Seeds do not develop until the tree is at least 15 years old. Copyright © 2020 Iowa State University of Science and Technology. Growth Rate: Medium to Fast; NDSU trials averaged 3 – 4’ of growth annually over 10 years of evaluation. Pruning when young will help to develop a stronger structure. In addition to Dutch Elm disease, the elm may be afflicted with pests including bark beetles, gypsy moth, elm borer, mites and scales. Tolerant of urban conditions and highly resistant to Dutch elm disease, Princeton Elm is an excellent component of street tree … Live well over 150 years producing gracefully drooping branchlets street tree and is... 10 years of evaluation large handsome tree that any homeowner would be to... My consume large quantities of foliage, but will not necessarily damage the tree a! 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