YELLOWSTONE ARBORETUM
" Stewards of the Natural Environment "
Billings, Montana @ ZooMontana
American Elm
Catalogue A# 2012-001 PL4
GPS 45D 43' 59" N / 108D 37' 7" W
Ulmus americana
Family: Ulmaceae
Origin: North America
Common name: American Elm
Location: Parking lot north islands
Number in accession: 7
Note: Plantings from Billings City Arbor Day celebrations-2012
This 19 inch American elm provides overall benefits of: $99 every year.
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.