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Photo from 2018 (above)

Photo from 2015 (below)

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American Elm
Catalogue A# 2018-NA  WW11
GPS 45D 44" 4" N / 108D 37' 33" W

These specimens are non-accessioned. More information and photos are forthcoming.

Location: Bear Meadows-north/Waterways-south hill near fence

Number in accession: 2

​This 30 inch American elm provides overall benefits of: $134 every year. 

Botanical name: Ulmus americana
All Common Names: American elm
Family (English): Elm
Family (Botanic): Ulmaceae
        Tree or Plant Type: Tree
        Native Locale: North America
        Size Range: Large tree (more than 40 feet)
        Light Exposure: Full sun (6 hrs direct light daily)
        Hardiness Zones: Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9
        Soil Preference: Moist, well-drained soil
        Season of Interest: Early winter, Mid winter, Late winter, Early fall, Mid fall
        Flower Color & Fragrance: Inconspicuous, Other
        Shape or Form: Vase-shaped
        Growth Rate: Moderate, Fast
More Information:
Tree & Plant Care
Generally, elms prefer sun.
Adapt easily to extremes in soil pH, moisture and heat and wind tolerance
Disease, pests, and problems
Dutch elm disease, elm yellows, elm phloem necrosis, elm bark beetle, elm leaf beetles, elm leaf miner and verticillium wilt.
Native geographic location and habitat
C-value: 3
Native to the the eastern half of the United States.
Leaf or needle arrangement, size, shape, and texture
Alternate, oval, pointed leaves have doubly toothed margins. Leaf is shorter on one side of center vein than on the other. Dark green in summer, changing to yellow fall.
Flower arrangement, shape, and size
Inconspicuous flowers in early spring.
Fruit, cone, nut, and seed descriptions
Seed in small oval samara (seed case with wings for wind dispersal)

CRITIQUE

Elms are loved for their graceful, stately shape, with branches like spreading fountains, and their green leaves that turn gold in fall. Sadly, the American elm (Ulmus americana) can no longer be recommended because it is vulnerable to a devastating pathogen called Dutch elm disease. However, due in part to research at The Morton Arboretum, other species and hybrids that are more resistant to the disease are available for planting. The biggest lesson learned from the devastation of Dutch elm disease is the importance of having a variety of trees along streets, in parks, and in home landscapes so that no disease or pest that may arrive can kill a large proportion of the trees.

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