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Pacific Ninebark

Scientific name

Physocarpus capitatus


Pacific Ninebark is a deciduous shrub species that typically grows between 1.5 and 3 m in height. The bark appear peeling in long narrow strips. The leaves are alternately arranged, green colored, have 3-5 pointed maple leaf like lobes, have deep veins, and have doubly serrated margins. The flowers are small, white colored, have five petals, appear in dense ball-like clusters, and blooms between April and June. The fruits are small, reddish brown colored follicles, which ripen between September and October. The flowers are beneficial to pollinator species, such as bees and butterflies. The roots are good for controlling erosion and stabilizing shorelines. This is a valuable species for re-vegetating riparian areas. Propagates easily from cuttings.

Planting conditions

Pacific Ninebark grows best in moist conditions with partial sun exposure. It can tolerate a variety of soil types as long as there is adequate moisture. It is tolerant of periodic flooding, serpentine soil, and slightly acidic soil. This plant can be naturally found in moist forests, on moist slopes, around swamps and marshes, or along stream and lake shorelines.


  • Plant height:
    • Max 3m
    • Any
  • Moisture level:
    • Moist
    • Wet
    • Flood Tolerant
  • Light conditions:
    • Partial sun
  • Soil type:
    • Sandy
    • Loamy
    • Clay
    • Humus
    • Rocky
  • pH:
    • Acidic
    • Normal
  • Depth:
    • Potted
    • Bareroot
  • Eco Zone:
    • 5b
    • 6a
    • 6b
    • 7a
    • 7b
    • 8a
  • Plant type:
    • Shrub
  • Height:
    • 3 m
  • Spread:
    • 2 m