Bugbane (Actaea spp., formerly Cimicifuga)

Bugbane, also known as Black Cohosh or Actaea, is a striking perennial prized for its tall, elegant spires of creamy white or soft pink flowers that rise above bold, deeply divided foliage—often a rich green or purplish-bronze. Blooming in late summer to fall, Bugbane adds height, movement, and fragrance to shade gardens and woodland settings. The name “Bugbane” comes from its reputed ability to repel insects, though its primary appeal today is ornamental. It’s especially valued for creating a dramatic, architectural effect in moist, shady areas.

Category

Sun Needs:

  • Part shade to full shade
  • Can tolerate morning sun if soil remains moist

Bloom Time:

  • Late summer to early fall (August to October)
Size:

Height: 3 to 6 feet tall, depending on the variety
Width: 2 to 3 feet spread

Attributes:
  • Tall, airy flower spikes with fragrant, bottlebrush blooms
  • Attractive, fern-like foliage—some varieties have dark purple or bronze leaves
  • Excellent for adding vertical interest in shade gardens
  • Attracts pollinators including bees and butterflies
  • Deer and rabbit resistant
  • Prefers moist, rich, well-drained soil
  • Slow to establish but long-lived once settled
  • Adds elegance and drama to shade or woodland borders
Companion:
  • Astilbe
  • Ferns
  • Hosta
  • Brunnera
  • Japanese Forest Grass (Hakonechloa)
  • Toad Lily (Tricyrtis)
  • Ligularia
  • Bleeding Heart (Dicentra)
  • Solomon’s Seal (Polygonatum)
  • Heuchera (Coral Bells)

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