Poorland Flatsedge
Cyperus compressus
Last reviewed: June 2026
The USDA PLANTS Database (opens in new tab) does not flag Poorland Flatsedge as toxic to livestock.
Light
full sun
Water
low
Size
4"–16" H × 2"–8" W
Bloom
Jun, Jul, Aug, Sep, Oct
Native to
AL, AR, DE, FL and 17 more states
Browse plants for this ecoregion
Poorland flatsedge is a low-growing annual sedge with narrow, grass-like leaves and small clusters of brownish flowers from summer through fall. This compact native thrives in sunny, dry conditions and poor soils where other plants struggle. It naturally reseeds each year, creating a fine-textured groundcover.
In an HOA neighborhood
Poorland Flatsedge 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.
- Annual growth means gaps in coverage
- Can appear weedy or unkempt
- Name includes 'poorland' which suggests weedy nature
Wildlife value
This sedge provides seeds for small birds and supports various insects, though it's not a major pollinator plant. Its dense growth offers shelter for ground-dwelling beneficial insects.
Common questions
- How much sun does Poorland Flatsedge need?
- Poorland Flatsedge grows best in full sun conditions.
- When does Poorland Flatsedge bloom?
- Poorland Flatsedge blooms in June, July, August, September, and October.
- Where is Poorland Flatsedge native?
- Poorland Flatsedge (Cyperus compressus) is native to AL, AR, DE, FL and 17 more states, per the USDA PLANTS Database and regional native plant society lists.
- Is Poorland Flatsedge toxic to livestock?
- The USDA PLANTS Database does not flag Poorland Flatsedge as toxic to livestock.
- Is Poorland Flatsedge HOA-friendly?
- Poorland Flatsedge 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 Poorland Flatsedge? 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