Mountain bugbane (Actaea podocarpa)

Mountain bugbane

Also known as: Black cohosh

This wildflower grows tall and wide, producing long spikes of white flowers shaped like a bottle-brush. The distinctive, slightly unappealing odor of these blooms attracts flies to them. Mountain bugbane has been used as a protection against strong winds and takes awhile to get established, often taking as long as three years.

Scientific classification

Species

Mountain bugbane (Actaea podocarpa)

Buttercups, poppies and allies

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Perennial

Lifespan

Herb

Plant Type

2.5 cm to 8 cm

Flower Size

Brown

Fruit Color

White, Pink, Cream

Flower Color

Summer, Fall

Growth Season

Slow

Growth Rate

Images of Mountain bugbane

Quickly Identify Mountain bugbane

Sturdy, green stems with low branching create a bushy appearance.

Distinctive one-foot spikes of white, bottle-brush-like flowers on tall stems.

Deep green, fern-like leaves with 3 coarsely toothed leaflets per ternate leaf.

Tiny white flowers with 24 stamens, emitting a strong odor to attract pollinating flies.

Follicles with short, curved beaks for seed dispersal, transitioning from green to brownish.

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Care Guide for Mountain bugbane

Every week

Water

Water: Thriving in moist woodlands, mountain bugbane prefers consistently moist soil and shows moderate drought tolerance when established. Weekly watering is recommended for optimal health, especially during the active growing season, as water availability significantly influences its growth cycles.

Pruning: Mountain bugbane features tall stems and white, fragrant flowers. Prune in early spring, removing dead or damaged stems to boost airflow. Avoid heavy pruning to reduce stress. Cut back spent stalks after blooming for tidiness and potential second blooms. Regular pruning fosters vigorous growth and flowering.

Propagation: Mountain bugbane is propagated through sowing fresh seeds for better germination. Use a well-draining soil mix, plant seeds superficially, and maintain consistent moisture without waterlogging. Germination may take several weeks or months, so avoid disturbing the soil during this period.

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