Woolgrass
Scirpus cyperinus
Last reviewed: June 2026
Light
part sun
Water
high
Size
24"–60" H × 12"–24" W
Bloom
Jun, Jul, Aug
Native to
AL, AR, CT, DE and 34 more states
Pollinators
bees, beetles
Browse plants for this ecoregion
Cotton-grass bulrush is a tall native sedge that forms attractive clumps with distinctive fluffy, cotton-like seed heads in late summer. This moisture-loving plant thrives in wet soils and bog gardens, producing clusters of white to tan cottony plumes that persist into fall.
In an HOA neighborhood
Woolgrass 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.
- Very tall and can appear weedy
- Requires consistently wet conditions
- Cottony seed heads may look unkempt to some
Wildlife value
The flowers attract bees and beetles during summer blooming. Seeds provide food for waterfowl and songbirds, while the dense growth offers nesting habitat for marsh birds.
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 Woolgrass fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.