Skip to main content

Flatleaf Flatsedge

Cyperus planifolius

Last reviewed: June 2026

Flatleaf Flatsedge (Cyperus planifolius)
Photo: National Museum of Natural History / Wikimedia Commons (CC0)

Light

part sun

Water

medium

Size

12"–24" H × 6"–12" W

Bloom

N/A

Native to

FL, GA

Flatleaf flatsedge is a compact native sedge that forms small clumps of narrow, grass-like foliage. This low-growing perennial works well as a groundcover or accent plant in partially sunny areas with average moisture.

In an HOA neighborhood

Flatleaf 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.

  • Sedges often appear weedy to conventional landscaping standards
  • May be confused with undesirable grass species
  • Lacks obvious ornamental flowers or striking appearance

Wildlife value

This sedge provides habitat and food sources for various insects and small wildlife. The seeds may attract birds, though specific pollinator information is limited.

Common questions

How much sun does Flatleaf Flatsedge need?
Flatleaf Flatsedge grows best in part sun conditions.
Where is Flatleaf Flatsedge native?
Flatleaf Flatsedge (Cyperus planifolius) is native to FL, GA, per the USDA PLANTS Database and regional native plant society lists.
Is Flatleaf Flatsedge HOA-friendly?
Flatleaf 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 Flatleaf 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