Schweinitz's Flatsedge
Cyperus schweinitzii
Last reviewed: June 2026
Light
full sun
Water
medium
Size
4"–24" H × 4"–24" W
Bloom
Jun, Jul, Aug, Sep
Native to
CO, IA, IL, IN and 19 more states
Schweinitz's flatsedge is a compact native sedge that forms small clumps with narrow, grass-like foliage. It produces small clusters of brownish flower spikes from summer through early fall, adding subtle texture to native plantings.
In an HOA neighborhood
Schweinitz's 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.
- Appears very grass-like and weedy
- Brownish flowers lack visual appeal
- May be mistaken for undesirable weeds
Wildlife value
This sedge provides habitat and food for various insects and small wildlife. The seeds may attract some birds, though it's not a major pollinator plant.
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 Schweinitz's Flatsedge fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.