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Photo by H. Zell

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Caulophyllum thalictroides

Also Known As

Blue Cohosh

Plant type

perennial

size

H: 24"-36"
W: 12"

planting zones

3a-8b

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Caulophyllum thalictroides plant details

Caulophyllum thalictroides is a broadleaf deciduous perennial with green foliage. In spring green and yellow flowers emerge followed by blue fruit. Grows well with shade and even moisture - regular water. Does well in average, rich and well-drained soil.

CHARACTERISTICS OF Caulophyllum thalictroides

Plant type: perennial
Plant family: berberidaceae
Foliage: deciduous green
Mature size: 12 IN wide, 24 IN - 36 IN - tall
Flowers: green and yellow blooms in spring
Uses: clumping, woodland garden

GROWING CONDITIONS for Caulophyllum thalictroides

USDA Zones: 3a - 8b
Sun exposure: shade
Watering frequency: even moisture - regular

Soil needs: average, rich and well-drained

Nursery contributed plant descriptions

Lovely bluish green foliage on this East Coast woodland native show off its small but unique yellowish brown flowers in early Spring. The foliage holds up very well as the large dark blue berries mature over the Summer.

By: Sunshine Farm and Gardens

Blue Cohosh (Caulophyllum thalictroides), also known as Squaw Root, is a choice woodland wildflower treasured for its lacy, blue-green foliage and deep blue berries, A real star of the shade garden! Looks great when planted with lower growing wildflowers, ferns, and sedges, Hardy to Zones 3 - 7.

By: Prairie Nursery

Uncurling rue-like leaves glow with reddish purple, giving rise to clusters of yellow green flowers followed by glorious long lasting blue berries which are the main attraction and give rise to the common name Blue Cohosh.

By: Arrowhead Alpines

Blooms: spring, yellow, blue fruit/ early emerging, dark blue-green foliage Zone 4-9. 24", Eastern US, part shade-shade, moist, well drained

By: Keeping it Green Nursery

Greenish-yellow flowers in April transform into interesting round blue fruit in fall after foliage decline. Airy meadow rue-like foliage on 2-3' clumping perennials. Native to eastern North America.