American Senna
Senna hebecarpa
Last reviewed: June 2026
Light
part sun
Water
medium
Size
24"–60" H × 18"–36" W
Bloom
Jul, Aug, Sep
Native to
CT, DE, IL, IN and 16 more states
Pollinators
bees, butterflies
American senna is a native perennial that produces bright yellow flowers from summer through early fall. This upright plant has compound leaves and develops seed pods after flowering, creating seasonal interest in the landscape.
In an HOA neighborhood
American Senna is an HOA-friendly choice. Maintenance level: moderate. Tidiness: 3 out of 5.
Works well in: mid zone, foundation, backyard only.
- Can look somewhat informal during winter dormancy
- Seed pods may be considered messy by some
Wildlife value
Host plant for cloudless sulphur butterfly, orange sulphur butterfly.
The bright yellow flowers attract various bees and butterflies during its long blooming period. Seeds provide food for birds and small wildlife.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does American Senna fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.