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Black Cohosh

Actaea racemosa

Black Cohosh features deep green, divided leaves that form a dense, bushy clump. By late summer, it shoots up dramatic spikes of tiny, white flowers that reach high above the foliage, creating an eye-catching display in shaded areas. The plant is not only a visual standout but also valued for its historical use in herbal medicine.

Details

Height48” - 72”
Spread24"
Bloom SeasonJune – September
Soil Types
clayClay
loamLoam
sandSand
Soil Moisture
mediumMedium
moistMoist
Sun Exposure
fullShadeFull Shade
partSunPart Sun

Range Map

Available
Not available

Ecological Benefits

Maintenance Tips

  • Prefers consistently moist soil; water regularly to maintain even soil moisture, especially in dry periods
    Deadhead spent flowers to keep the plant looking tidy and encourage additional blooming
    Thrives in rich, well-draining soil; amend with compost to enhance fertility
    Divide clumps in early spring every 3-4 years to rejuvenate growth and manage spread
    Taller flower spikes may benefit from staking if they become floppy

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