Bugbane, Snakeroot, Cohash (Cimicifuga racemosa)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Perennial

Bugbane, Snakeroot, Cohash
Cimicifuga racemosa

Cimcifuga Black Cohash
Cimcifuga Black Cohash
 
Features
Tall stately plant with deeply cut foliage and large plumes of white flowers. Good for late season flowering.  
 
Culture
Needs a moist soil in a part to full shade site 
 
Cultivars

'Atropurpurea' 6-7 feet tall dark green foliage with purple stems and white flowers

'Brunette' 3-4 feet tall dark purple foliage with white flowers

'Hillside Black Beauty' 4-7 feet tall purple black foliage white flowers

 
 
Mature Height
3-8 Feet
 
Size
Tall
 
 
USDA Hardiness Zone
3 - 8 
 
Bloom Color
White
 
 
Bloom Season
August - September
 
Soil Conditions
Moist, Well-Drained
 
 
Exposure/Light Requirements
Partial Sun/Shade
 
 
Foliage Color
Green
Purple
 
 
Pests and Problems

Environmental Damage


Additional pests and problems that may affect this plant:

None serious
 
Additional Notes
Best grown in soils that are uniformly moist and shaded for best foliage quality. Long lived, slow growing perennial. Fragrant flowers. Reportedly deer and rabbit resistant. Attracts butterflies.

 

 
Related Resources
Home, Yard & Garden Pest Guide
Illinois Commercial Landscape and Turfgrass Pest Management Handbook
U of IL - Distance Diagnosis through Digital Imaging
U of IL - Plant Clinic