Umbrella Sedge
Cyperus iria
Last reviewed: September 2026
Toxicity unknown
Umbrella Sedge (Cyperus iria) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part sun
Water
high
Size
4"–24" H × 4"–12" W
Bloom
Jun, Jul, Aug, Sep
Native alternatives to Umbrella Sedge
Umbrella Sedge is not native to the United States. These natives fill a similar role in a planting, matched on bloom season, bloom color and mature size.
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaUmbrella 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.
- 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.
Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Umbrella Sedge? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Planning a bed around it? Start a free plan with this plant
Not sure where to start? Take the 2-minute yard quiz