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Caulophyllum thalictroides

 

Blue Cohosh is an ephemeral perennial in the Berberidaceae family, usually found in oak filled
woods. Yellow green flowers appear before the leaves have developed in spring. Leaves start out blue-green then become more green as they mature. In late summer, bright blue berries appear. Although ornamental and great wildlife value, the berries are toxic to humans. This plant prefers a shady area and moist, well-drained soils. Blue Cohosh makes a fantastic addition to a shady rain garden.

Key Info

Scientific Name: Caulophyllum thalictroides
Common Names: Blue Cohosh
Light Requirement: , ,
Moisture Requirement:
Leaf Retention:
Bloom Times: ,
Flower Color: Yellow, green
Special Characteristics:

Additional Info

Habit: Ascending, erect
Height: 1' - 2'
Spread: 0.5' - 1'
Soil Conditions: High organic matter, loam, sand, slightly acidic
Leaves: Green, alternate, oblong
Flowers (or reproductive structures: 6 petals
Fruit: Blue, showy, appearing in July-August
USDA Hardiness Zone: 3-8
Pollination: Bees and flies
Wildlife Connections: Mice eat the berries
Propagation: Division, seed