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Oregon Ash

Scientific name

Fraxinus latifolia


Oregon Ash is a fast growing, deciduous tree species that typically grows up to 25 m in height. The leaves are oppositely arranged, light green colored, pinnately compound with 5-7 oval shaped leaflets. The flowers are dioecious, yellowish green in color, have no petals, appear in small clusters, and bloom between March and May before the leaves emerge. The fruits are single samaras and appear in drooping clusters between August and September. The food and habitat provided by this tree are beneficial to many wildlife species, including birds and mammals. The roots are good for controlling erosion and stabilizing shorelines. It is easy to grow and is low maintenance. This is a valuable species for re-vegetating riparian areas.

Planting conditions

Oregon Ash grows best in moist to wet conditions with full or partial sun exposure. It prefers deep, rich, poorly drained, loam or humus soil types. It tolerates periodically flooded areas. This tree can be naturally found in moist forests, on gentle slopes, and along riparian areas in the Pacific Northwest.


  • Plant height:
    • Any
    • Over 3m
  • Moisture level:
    • Moist
    • Wet
    • Flood Tolerant
  • Light conditions:
    • Full sun
    • Partial sun
  • Soil type:
    • Loamy
    • Humus
  • pH:
    • Normal
  • Depth:
    • Potted
  • Eco Zone:
    • 6a
    • 6b
    • 7a
  • Plant type:
    • Tree
  • Height:
    • 25 m
  • Spread:
    • 3 m