Tansy Rosinweed (Silphium Pinnatifidum) is a perennial herb in the Asteraceae family with moderate care difficulty. It requires moderate watering and full sun light in USDA hardiness zones 4-8. This plant is safe for cats and dogs.

Silphium pinnatifidum is a tall perennial flowering plant native to the Southeastern United States, known for its yellow flowers and pinnatifid leaves.

Tansy Rosinweed

Tansy Rosinweed

Silphium Pinnatifidum

Silphium pinnatifidum is a tall perennial flowering plant native to the Southeastern United States, known for its yellow flowers and pinnatifid leaves.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Full Sun
Hardiness Zones
4-8

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:loamy, sandy, gravelly
Indoor:No
Outdoor:Yes
Garden Use:pollinator support, ornamental, native plant garden

Care Calendar

Monthly care tasks for Tansy Rosinweed

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

Tansy Rosinweed
Tansy Rosinweed detail

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Taxonomy

Family:Asteraceae
Genus:Silphium