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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 3–8Type PerennialClimate Temperate
Blue Cohosh (Caulophyllum Thalictroides) — Blue Cohosh, Caulophyllum thalictroides, is a shade-loving perennial native to woodland areas
Blue Cohosh (Caulophyllum Thalictroides) — The leaves are biternate and compound; green and yellow flowers in the garden, image 79Blue Cohosh (Caulophyllum Thalictroides) — they give way to eye-catching; deep blue berries in late summer that stand out against the autumn-huedBlue Cohosh (Caulophyllum Thalictroides) — lacy blue-green foliage reaching up to 3 feet tallBlue Cohosh (Caulophyllum Thalictroides) — green and yellow flowers in the garden; scientifically named Caulophyllum thalictroides, image 67Blue Cohosh (Caulophyllum Thalictroides) — scientifically named Caulophyllum thalictroides; they give way to eye-catchingBlue Cohosh (Caulophyllum Thalictroides) — yellow-green to brown flowers in early spring; blue Cohosh should be planted in partial to full shade, image 72+93

Culture

Sun
Half, Shade
Water
Medium
USDA zones
3–8

Shape & size

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

Classification

Type
Perennial
Family
Berberidaceae
Climate
Temperate

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Photos (100)

Blue Cohosh (Caulophyllum Thalictroides) — Blue Cohosh, Caulophyllum thalictroides, is a shade-loving perennial native to woodland areas
Blue Cohosh (Caulophyllum Thalictroides) — The leaves are biternate and compound; green and yellow flowers in the garden, image 79
Blue Cohosh (Caulophyllum Thalictroides) — they give way to eye-catching; deep blue berries in late summer that stand out against the autumn-hued
Blue Cohosh (Caulophyllum Thalictroides) — lacy blue-green foliage reaching up to 3 feet tall
Blue Cohosh (Caulophyllum Thalictroides) — green and yellow flowers in the garden; scientifically named Caulophyllum thalictroides, image 67
Blue Cohosh (Caulophyllum Thalictroides) — scientifically named Caulophyllum thalictroides; they give way to eye-catching
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) — yellow-green to brown flowers in early spring
Blue Cohosh (Caulophyllum Thalictroides) — Embraced by landscape enthusiasts for its blue-green foliage and striking seed pods; is a perennial woodland plant
Blue Cohosh (Caulophyllum Thalictroides) — yellow-green flowers appear above the foliage canopy; receiving protection from the harsh afternoon sun, image 59
Blue Cohosh (Caulophyllum Thalictroides) — emerging with a purplish tint in spring and maturing to blue-green as the season progresses; it requires rich, moist
Blue Cohosh (Caulophyllum Thalictroides) — This species prefers well-draining
Blue Cohosh (Caulophyllum Thalictroides) — attracting pollinators and underpinning biodiversity
Blue Cohosh (Caulophyllum Thalictroides) — Although the blooms are somewhat inconspicuous; the leaves are biternate and compound, image 61
Blue Cohosh (Caulophyllum Thalictroides) — perennial for half or shade
Blue Cohosh (Caulophyllum Thalictroides) — Embraced by landscape enthusiasts for its blue-green foliage and striking seed pods
Blue Cohosh (Caulophyllum Thalictroides) — emerging with a purplish tint in spring and maturing to blue-green as the season progresses
Blue Cohosh (Caulophyllum Thalictroides) — perennial for half or shade; it requires moderate moisture, with about 1 inch of water weekly, more so if rainfall
Blue Cohosh (Caulophyllum Thalictroides) — green and yellow flowers in the garden
Blue Cohosh (Caulophyllum Thalictroides) — attracting pollinators and underpinning biodiversity; yellow-green to brown flowers in early spring
Blue Cohosh (Caulophyllum Thalictroides) — The leaves are biternate and compound
Blue Cohosh (Caulophyllum Thalictroides) — yellow-green flowers appear above the foliage canopy
Blue Cohosh (Caulophyllum Thalictroides) — is a perennial woodland plant native to eastern North America
Blue Cohosh (Caulophyllum Thalictroides) — perennial with green and yellow blooms
Photographs by 9 contributors

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