Sampson's Snakeroot
Orbexilum pedunculatum
Last reviewed: June 2026
Light
part sun
Water
medium
Size
12"–24" H × 6"–12" W
Bloom
Jun, Jul, Aug
Native to
AL, FL, GA, IL and 13 more states
Pollinators
bees, butterflies
Browse plants for this ecoregion
Sampson's snakeroot is a native wildflower that produces clusters of small purple flowers from June through August. This compact perennial forms neat clumps with attractive three-leaflet foliage and grows well in partial sun with average moisture.
In an HOA neighborhood
Sampson's Snakeroot takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Uncommon plant that HOAs may not recognize as intentional landscaping
- Can appear sparse or weedy compared to traditional garden plants
- May die back noticeably in winter
Wildlife value
The purple flower clusters attract native bees and butterflies throughout the summer blooming period. This legume also helps improve soil nitrogen through its root system.
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 Sampson's Snakeroot fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.