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Home Page » Home & Garden » Gardening » Black cohosh: Cimicifuga racemosa

Black cohosh: Cimicifuga racemosa

Other common names: snakeroot

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In late summer, snakeroot bears spikes of white blooms that can be malodorous. It is a tall, airy, clump-forming perennial with lobed and toothed leaflets, ideal for a shady garden.

Profile

Plant typeperennial
Hardiness zones3 to 7
Lightpart-shade-to-full-shade
Height6 ft. to 8 ft.
Spread2 ft. to 4 ft.
Habitupright
Soil pHslightly-acidic-to-neutral-pH6.5-7
Soil moisturemoist
Bloom timesummer
Flower colorwhite
Bloom size2 ft. to 2 ft.
Foliage colormedium-green
Foliage size2 ft.6 in. to 2 ft.6 in.

did you know?

Snakeroot is native to the eastern United States and a common sight to woodland hikers. The roots were used by Native Americans to treat rheumatism and menstrual problems; the Penobscot used it for kidney problems.

general maintenance:

In early spring, cut back previous year's foliage. Flower spikes may need staking.

pests/diseases:

Snakeroot is relatively care free.

how to sow/plant:

Choose a shady, moist, well-drained site, and amend with compost or well-rotted manure. Set plant at same depth it grew in pot. Space at a distance equal to its mature spread. Water upon planting, and mulch to conserve moisture.

water and fertilize:

Maintain soil moisture all season. In spring, apply a balanced, all-purpose fertilizer, following label directions.

garden hint:

For a dramatic spring display, plant large-flowering ornamental alliums or to grow through snakeroot's young foliage.

features:

  • Attractive Flowers
  • Attractive Foliage
  • Fall Foliage
  • Native

garden uses:

  • Flowerbed borders
  • Naturalizing
  • Shade Woodland Garden

other uses:

  • Medicinal (roots used in traditional medicine)

combine with:

other shade-loving perennials such as Japanese pagoda flower hostas, and ferns.

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