Cowbane (Oxypolis Rigidior) is a perennial herb in the Apiaceae family with moderate care difficulty. It requires high watering and full sun light in USDA hardiness zones 3-9. This plant is toxic to cats and dogs — keep it out of reach of pets.

Oxypolis rigidior is a perennial herbaceous plant commonly found in wet prairies, marshes, and swamps, known for its white, five-petaled flowers and tuberous roots.

Cowbane

Cowbane

Oxypolis Rigidior

Oxypolis rigidior is a perennial herbaceous plant commonly found in wet prairies, marshes, and swamps, known for its white, five-petaled flowers and tuberous roots.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
High
Light
Full Sun
Hardiness Zones
3-9

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:loamy, silty, peaty
Indoor:No
Outdoor:Yes
Garden Use:groundcover, habitat restoration

Care Calendar

Monthly care tasks for Cowbane

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

Cowbane
Cowbane detail

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Taxonomy

Family:Apiaceae
Genus:Oxypolis