Gray'S Flat Sedge
Cyperus grayi
Last reviewed: June 2026
Light
part sun
Water
high
Size
12"–36" H × 6"–18" W
Bloom
Jun, Jul, Aug
Native to
AL, CT, DE, FL and 11 more states
Gray's sedge is a native wetland perennial that forms clumps of narrow, grass-like leaves. It produces small, inconspicuous flower clusters on triangular stems during summer months and thrives in consistently moist to wet soils.
In an HOA neighborhood
Gray'S Flat Sedge takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Sedge appearance may look too wild or weedy for front yards
- Requires consistently moist conditions that may appear unkempt
- Umbrella-shaped flowers can appear unusual to traditional gardeners
Wildlife value
This sedge provides habitat and nesting material for wetland birds and supports various small insects. The seeds are eaten by waterfowl and songbirds that frequent wet areas.
Common questions
- How much sun does Gray'S Flat Sedge need?
- Gray'S Flat Sedge grows best in part sun conditions.
- When does Gray'S Flat Sedge bloom?
- Gray'S Flat Sedge blooms in June, July, and August.
- Where is Gray'S Flat Sedge native?
- Gray'S Flat Sedge (Cyperus grayi) is native to AL, CT, DE, FL and 11 more states, per the USDA PLANTS Database and regional native plant society lists.
- Is Gray'S Flat Sedge HOA-friendly?
- Gray'S Flat Sedge takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
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.
Ready to grow Gray'S Flat Sedge? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz