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perennial

Black Negligee Snakeroot

Cimicifuga racemosa 'Black Negligee'

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Black Negligee Snakeroot (Cimicifuga racemosa 'Black Negligee') at Gertens

Black Negligee Snakeroot foliage

Black Negligee Snakeroot foliage

(Photo courtesy of NetPS Plant Finder)

Black Negligee Snakeroot (Cimicifuga racemosa 'Black Negligee') at Gertens

Black Negligee Snakeroot

Black Negligee Snakeroot

(Photo courtesy of NetPS Plant Finder)

Height:  5 feet

Spread:  3 feet

Sunlight:  full sun  partial shade  full shade 

Hardiness Zone:  4a

Other Names:  Bugbane, Black Cohosh, Actaea racemosa

Brand:  Gertens

Description:

A good grower with lacy black foliage. Fragrant, white flowers in late summer. More sun exposure darkens the plant.

Ornamental Features

Black Negligee Snakeroot features bold spikes of fragrant white flowers with shell pink overtones rising above the foliage from mid to late summer. The flowers are excellent for cutting. Its attractive deeply cut ferny compound leaves emerge dark green in spring, turning deep purple in color throughout the season. The brown fruits are carried on spikes from late summer to late winter. The deep purple stems are very colorful and add to the overall interest of the plant.

Landscape Attributes

Black Negligee Snakeroot is an herbaceous perennial with tall flower stalks held atop a low mound of foliage. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.

This plant will require occasional maintenance and upkeep, and should be cut back in late fall in preparation for winter. It has no significant negative characteristics.

Black Negligee Snakeroot is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Naturalizing And Woodland Gardens
  • Container Planting

Planting & Growing

Black Negligee Snakeroot will grow to be about 5 feet tall at maturity, with a spread of 3 feet. It tends to be leggy, with a typical clearance of 1 foot from the ground, and should be underplanted with lower-growing perennials. It grows at a slow rate, and under ideal conditions can be expected to live for approximately 10 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!

This plant performs well in both full sun and full shade. It prefers to grow in moist to wet soil, and will even tolerate some standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This is a selection of a native North American species. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Black Negligee Snakeroot is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden. Be aware that in our climate, most plants cannot be expected to survive the winter if left in containers outdoors, and this plant is no exception. Contact our experts for more information on how to protect it over the winter months.

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Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Garden  Naturalizing  Container 
Applications
Flowers  Fruit  Foliage Color  Texture  Bark  Winter Value 
Ornamental Features