Fraxinus americana

Fraxinus americana

  • BOTANICAL NAME: Fraxinus americana
  • PRONUNCIATION: FRAK-si-nus a-mer-i-KA-na
  • COMMON NAME: White Ash
  • FAMILY: Oleaceae
  • NATIVITY: Eastern Canada and U.S.
  • GROWTH HABIT: Round headed with stout ascending branches, 50'-80' tall (120') x 60' - 90' wide. Rapid growth rate when young.
  • HARDINESS: Zones 3-9
  • CULTURE: Full sun in deep, moist, well-drained soils. Tolerant of heat, drought, and salt.
  • SUCCESSIONAL STATUS: Seral
  • FACULTATIVE STATUS: Facultative Upland
  • LANDSCAPE USE: Use cultivars. Fall color can be excellent. Easily transplanted.
  • FOLIAGE: Opposite, pinnately compound, with 5-9 ovate to ovate- lanceolate leaflets. Leaflets are opposite, 2"-6" long, usually with entire margins. Yellow to purple in fall. Flowers (April) are dioecious or polygamodioecious.
  • BUDS: Broadly ovate, rusty to dark-brown, inset into leaf scar.
  • BARK: Ash gray to brown, furrowed forming diamonds.
  • FRUIT: Samara 1"-2" long.
  • PROPAGATION: Seed; cultivars are budded.
  • PESTS: (Numerous) anthracnose, rust, borers, scale, canker.
  • CULTIVARS:
    • `Autumn Purple' - Deep-green leaves turn reddish purple in fall; male tree.
    • `Autumn Applsause' - Dark-maroon fall color; male tree.

 

 

University of Delaware

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