Fraxinus pennsylvanicaFraxinus pennsylvanica

  • BOTANICAL NAME: Fraxinus pennsylvanica
  • PRONUNCIATION: FRAK-si-nus pen-sil-VAN-i-ka
  • COMMON NAME: Green Ash
  • FAMILY: Oleaceae
  • NATIVITY: Southern Canada to Texas, eastern U.S. to Minnesota; greatest range for a native ash.
  • GROWTH HABIT: Pyramidal in youth, becoming an open, upright oval, 50'- 60' (80') tall; not rounded as F. americana. Fast growth rate.
  • HARDINESS: Zone 3-9
  • CULTURE: Well-drained soil in full sun; tolerant of light shade, drought and poor soils. Will grow in wet soils.
  • SUCCESSIONAL STATUS:  Seral
  • FACULTATIVE STATUS: Facultative Wetland
  • LANDSCAPE USE: Adaptable to many situations. Produces heavier shade than other ashes. Seeds are a detriment.
  • FOLIAGE: Opposite, pinnately compound, 5-9 ovate to lanceolate leaflets of equal size. Leaflets 2"-5" long, normally serrate margins. More lanceolate than F. americana. Shiny green in summer, may be yellow in fall.
  • BUDS: Rounded, dark-brown, set above leaf scar. Leaf scar straight at top.
  • BARK: Similar to F. americana.
  • FRUIT: Samara, 1"-2" long.
  • PROPAGATION: Seed. Cultivars are budded.
  • PESTS: Borers, scale, rust.
  • CULTIVARS:
    • +'Marshall's Seedless' - Male tree with shiny dark-green foliage. Good yellow fall color.
    • +'Summit' - Good yellow fall color.

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University of Delaware

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