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American Elm (Ulmus americana) Tree Seeds - 12 Count


American Elm Tree Seeds
Ulmus americana

Common Elm, Street Elm, White Elm, Blanco Elm, German Elm

Description Large, handsome, graceful tree, often with enlarged buttresses at base, usually forked into many spreading branches, drooping at ends, forming a very broad, rounded, flat-topped or vase like crown, often wider than high. Also known as the Water, White, or Soft Elm.
Height: 100+' (30+ m).
Diameter: 4' (1.2 m), sometimes much larger.
Leaves: In 2 rows; 3 to 6" (7.5 to 15 cm) long, 1 to 3" (2.5 to 7.5 cm) wide. Elliptical, abruptly long-pointed, base rounded with sides unequal; doubly saw-toothed; with many straight parallel side veins; thin. Dark green and usually hairless or slightly rough above, paler and usually with soft hairs beneath; turning bright yellow in autumn.
Bark: Dark, ashy-gray, flat-topped ridges separated by diamond-shaped fissures; outer bark when sectioned shows distinct, alternating, buff colored and reddish-brown patches. When young it is often quite spongy.
Twigs: Brownish, slender, and generally hairless.
Flowers: 1/8" (3 mm) wide; greenish; clustered along twigs in early spring.
Fruit: 3/8 to 1/2" (10 to 12 mm) long; elliptical flat 1-seeded keys (samaras), with wing hairy on edges, deeply notched with points curved inward; long-stalked; maturing in early spring.
Habitat Moist soils, especially valleys and flood plains; in mixed hardwood forests.
Range SE. Saskatchewan east to Cape Breton Island, south to central /southern Florida, and west to central Nevada, with some specimens in the California, Oregon, & Washington state areas; to 3750'.
Discussion This well known, once abundant species, familiar on lawns and city streets, has been ravaged by the Dutch Elm disease, caused by a fungus introduced accidentally about 1930 and spread by European and native elm bark beetles. The wood is used for containers, furniture, and paneling.
Seedbed: Proper seedbed preparation is essential for successful establishment of seedlings. The seedbed should be in a well-drained location with a sandy-loam soil. To facilitate drainage, beds are often raised by furrowing or erecting sideboards. Elm trees generally do not require shading. The size of the bed will vary but generally, a 1 m x 3 m bed will be adequate for approximately 1,500 seedlings. American Elm prefers moist, deep, rich soils of variable pH, but can tolerate soils that are dry and of average composition. Its winged seeds readily disperse over a wide area in spring, and the root structure of seedlings is initially taprooted, but quickly develops into a fibrous system that transitions to shallow roots with age (as is typical of species that like moist soils). It thrives in full sun to partial sun, and is found in zones 3a to 9b.
Discussion: American Elm, once a stately and magnificent tree that lined America's city streets, has partly followed in the footsteps of the American Chestnut, with many large American Elms succumbing to Dutch Elm disease. This pathogen (transmitted by the elm bark beetle) plugs the vascular system of the tree, preventing the flow of water and nutrients and slowly killing it. However, young trees are immune to the disease, and many reach reproductive age before falling victim to this foreign fungus. Also known as White Elm (probably in reference to the creamy white wood), this large, vase-shaped tree is native to the entire eastern and central portions of the United States, extending into southern Canada. It is found throughout all of Ohio, primarily in moist sites such as bottomlands and ravines, but commonly seen in open fields, fencerows, and open woodlots, where the ground is dry in summer. Its arching canopy is majestic at maturity, but most trees now die by the time they reach 40 feet tall. Individual specimens, isolated from other Elms, may reach 80 feet tall by 60 feet wide. As a member of the Elm Family, it is related to Hackberry, Zelkova, and the numerous other Elms. 

DISCLAIMER: We do not state or otherwise declare that our seed is immune or resistant to Dutch Elm Disease (DED). The disease widespread throughout the United States & Canada, and some parts of Europe. While some companies will promise you that their seeds perform better in laboratory testing and field tests, we do not state that. The disease is transmitted via fungi and insect activity, and in our opinion, there is no effective method of testing, preventing, or protecting in this matter.

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  • Model: ELM-AMERICAN-12
  • Shipping Weight: 0.1lbs
  • 626 Units in Stock
  • Manufactured by: Various Sources

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This product was added to our catalog on Sunday 03 January, 2016.

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