Early Blue Cohosh (Caulophyllum Giganteum) is a perennial herb in the Berberidaceae family with moderate care difficulty. It requires moderate watering and partial shade or dappled_shade or filtered_light light in USDA hardiness zones 3-7. This plant is toxic to cats and dogs — keep it out of reach of pets.

A perennial herb native to northeastern and east-central North America, known for its early spring blooming with purple flowers appearing before leaf expansion.

Early Blue Cohosh

Early Blue Cohosh

Caulophyllum Giganteum

A perennial herb native to northeastern and east-central North America, known for its early spring blooming with purple flowers appearing before leaf expansion.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Partial Shade, dappled_shade, filtered_light
Hardiness Zones
3-7

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:loamy, peaty, well-drained
Indoor:No
Outdoor:Yes
Garden Use:groundcover, early spring interest, pollinator support

Care Calendar

Monthly care tasks for Early Blue Cohosh

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Early Blue Cohosh
Early Blue Cohosh detail

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Taxonomy

Family:Berberidaceae
Genus:Caulophyllum