Ulmus americana

    • BOTANICAL NAME: Ulmus americana
    • COMMON NAME: American Elm
    • FAMILY: Ulmaceae
    • NATIVITY: Found throughout the East coast and as far west as the Rockies.
    • GROWTH HABIT: 60-80’ Tall, spreading tree, thick trunk
    • HARDINESS:  USDA Zone 3 to 9
    • OPTIMUM GROWING CONDITIONS:  Commonly found in rich woodlands, ravines, and lowlands; perfers full sun and moist soils.
    • FACULTATIVE STATUS: Facultative Wetland
    • LANDSCAPE VALUE:  This used to be a common landscaped lawn tree.  Still admired for it’s grandeur size and yellow fall color.
    • FOLIAGE:   Alternate, simple, oblong-obovate, serrated edge, pubescent or almost glabrous.  Turns to yellow in fall.
    • BUDS:  Imbricately scaled, ovate-conical shape.  No terminal bud.  Flower buds are stout and much larger.
    • BARK:  Dark gray, deep furrows and scaled patches overlapping each other.
    • FRUIT:  Rounded samaras that are notched, flowers are perfect, and in fascicles of 3 or 4 in early spring.
    • PESTS:  Dutch elm disease
University of Delaware

University of Delaware Botanic GardensNewark, DE 19716Phone: 302 831-0153