Picture Notes: Picture 16 is Ulmus americana cv. Augustine
Distribution: Newfoundland to Florida, west to foot of Rocky Mountains.
Hardiness Zone: USDA Zones 3-9 (view
USDA zone map)
Size: 60-80 ft. tall, with a spread of 30-50 ft.
Form: Deciduous tree. Upright, gracefully vase-shaped, with wide-spreading branches.
Stem/Bud: Buds are often at an angle, and appear terminal, but are not.
Leaves: Leaves are alternate, simple, ovate-oblong, 3-6 inches long, with an acuminate tip, double serrate margin, and an oblique base, coarse in texture.
Fall Color: Fall color is yellow.
Flower: Plants are polygamo-monoecious. Flowers are greenish-red, not showy, in March or April.
Fruit: Fruit is a samara fringed with hairs, l/2 inch long, maturing in late May-June.
Uses: Street tree, specimen. Salt tolerant.
Problems: Click here to view problems. Dutch elm disease reached the United States in 1930, in a shipment of elm logs from Europe, and has spread to 41 States from coast to coast.
Notes: Dutch elm disease reached the United States in 1930, in a shipment of elm logs from Europe, and has spread to 41 States from coast to coast.
Notes 2: Shade tree. Native to Michigan.
= Augustine American Elm
Same size as species, 60 to 80 ft. but with a spread of about 1/4
or 1/3 the height, so very columnar.
Excellent fall color.
Susceptible to the Dutch Elm disease.
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