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Giant Blue Cohosh

Caulophyllum giganteum, Berberidaceae

Zones
3–7
Layer
Herbaceous
Lifespan
Perennial
Growth
Slow

Guild Roles

Beneficial Insect HabitatDynamic AccumulatorShade Provider

Growing Conditions

Sun

Partial Shade (preferred)Full Shade (tolerated)

Water

Moderate (established)High (seedling)

Soil pH

5.5 – 7

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Cornelian Cherry DogwoodCornus officinalis
Shade ProvisionNurse Plant
Henry's Magnolia VineSchisandra henryi
Physical SupportPollinator Sharing

Antagonistic Plants

Russian LicoriceGlycyrrhiza echinata

Russian licorice produces glycyrrhizin and other compounds that can inhibit growth of other deep-rooted medicinal herbs like giant blue cohosh.

Uses

Functions

Medicinal Root ProductionWoodland GardenWildlife Habitat

Medicinal Uses

Women'S Reproductive HealthLabor SupportMenstrual IrregularitiesArthritisMuscle Spasms

Common Questions

What zones does Giant Blue Cohosh grow in?

Giant Blue Cohosh grows in USDA hardiness zones 3 through 7.

What are good companion plants for Giant Blue Cohosh?

Good companions for Giant Blue Cohosh include Cornelian Cherry Dogwood, Henry's Magnolia Vine.

Design guilds with Giant Blue Cohosh and see companion relationships visually.

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