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Umbrella Sedge

Cyperus iria

Last reviewed: June 2026

Umbrella Sedge (Cyperus iria)
Photo: Dinesh Valke from Thane, India / Wikimedia Commons (CC BY-SA 2.0)

Light

part sun

Water

high

Size

4"–24" H × 4"–12" W

Bloom

Jun, Jul, Aug, Sep

Native to

AL, AR, CA, CT and 19 more states

Umbrella sedge is a small annual grass-like plant with distinctive umbrella-shaped flower clusters that bloom from summer through early fall. It thrives in consistently moist to wet soils and partial sun conditions. This compact sedge typically stays under 2 feet tall with a neat, upright growth habit.

In an HOA neighborhood

Umbrella 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.

  • Grass-like appearance may be mistaken for weeds
  • Annual nature creates gaps when plants die back
  • Requires consistently wet soil which may appear unkempt

Wildlife value

The seed heads provide food for birds, particularly waterfowl and songbirds in late summer and fall. The plant structure offers shelter for small beneficial insects.

Common questions

How much sun does Umbrella Sedge need?
Umbrella Sedge grows best in part sun conditions.
When does Umbrella Sedge bloom?
Umbrella Sedge blooms in June, July, August, and September.
Where is Umbrella Sedge native?
Umbrella Sedge (Cyperus iria) is native to AL, AR, CA, CT and 19 more states, per the USDA PLANTS Database and regional native plant society lists.
Is Umbrella Sedge HOA-friendly?
Umbrella 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 Umbrella 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