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For successful seedlings,
see the growing notes at the bottom of the page!
Blue cohosh (Caulophyllum thalictroides) is a native perennial plant found in the moist understories of North American hardwood forests. This plant can reach up to one metre in height and is characterized by its large, compound leaves. In the spring, blue cohosh produces small clusters of green-yellow to bluish flowers, which later give way to dark blue berries. Adapted to shaded environments, it is commonly found in deciduous forests, where it contributes to forest flora diversity.
Medicinal and Culinary Uses
Blue cohosh is known for its medicinal uses, particularly in gynecology. Its roots and rhizomes possess antispasmodic and stimulating properties. In modern herbal medicine, it is often used to treat gynecological issues, but its use should be supervised due to the potential for side effects at high doses.
Ecological Roles
Blue cohosh plays an important ecological role in moist forest ecosystems. Its berries, though toxic to humans, are consumed by certain bird species. Additionally, this plant effectively covers the forest floor, helping prevent erosion and promoting moisture retention, which is beneficial in shaded forest environments. Its presence enhances the understory's biodiversity, providing habitat for small organisms.
Blue cohosh seeds require cold stratification to ensure germination. See the cultivation notes below for more details.
Akène cannot assume any responsibility for the use of plants for therapeutic purposes. Always seek advice from a professional before using a medicinal or edible plant.
Sowing and Growing
Technical Details
Seeds per packet: 15
Family: Berberidaceae
Scientific name: Caulophyllum thalictroides
Life cycle: Perennial
Hardiness zone: 3
Soil type: Sandy to silty
Soil moisture level: Humid
Soil - additional attributes: Well-drained, rich in organic matter
Light: Shade, partial shade
Blooming: May
Spacing: 60 cm
Height: 100 cm
Deer resistance: High
Stratification: 60 days
Scarification: Soak in hot water for 12 hours
Germination time:
Sowing depth: 12 mm