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Blue Cohosh

Caulophyllum Thalictroides

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Overview

Blue Cohosh, Caulophyllum thalictroides, is a shade-loving perennial native to woodland areas. It features delicate, lacy blue-green foliage reaching up to 3 feet tall, with small, nodding, yellow-green to brown flowers in early spring. The plant boasts blueberry-like seeds in late summer, adding interest. It requires rich, moist soil and prefers a spot with dappled sunlight to full shade. Hardiness zones 3-8.

Sun Half, ShadeWater MediumZones 3–8Climate Temperate
Blue Cohosh (Caulophyllum Thalictroides) — Blue Cohosh, Caulophyllum thalictroides, is a shade-loving perennial native to woodland areas

Culture

Sun
Half, Shade
Water
Medium
USDA zones
3–8

Shape & size

Mature height
1–2 Ft.
Mature width
0.5–1 Ft.

Classification

Family
Berberidaceae
Climate
Temperate

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Photos (80)

Blue Cohosh (Caulophyllum Thalictroides) — yellow-green to brown flowers in early spring; blue Cohosh should be planted in partial to full shade, image 72
Blue Cohosh (Caulophyllum Thalictroides) — The plant boasts blueberry-like seeds in late summer, adding interest; lacy blue-green foliage reaching, image 73
Blue Cohosh (Caulophyllum Thalictroides) — It requires rich, moist soil and prefers a spot with dappled sunlight to full shade; blue Cohosh is, image 74
Blue Cohosh (Caulophyllum Thalictroides) — scientifically named Caulophyllum thalictroides; they give way to eye-catching, image 75
Blue Cohosh (Caulophyllum Thalictroides) — is a perennial woodland plant native to eastern North America; perennial for half or shade, image 76
Blue Cohosh (Caulophyllum Thalictroides) — emerging with a purplish tint in spring and maturing to blue-green as the season progresses; it requires, image 80
Blue Cohosh (Caulophyllum Thalictroides) — Blue Cohosh is perfectly suited for understory compositions in hardiness zones 3 through 8; attracting, image 78
Blue Cohosh (Caulophyllum Thalictroides) — The leaves are biternate and compound; green and yellow flowers in the garden, image 79

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