Squarrose Sedge
Carex squarrosa
Last reviewed: June 2026
Carex squarrosa is a native sedge found across eastern and central United States, blooming May through July. This grass-like perennial thrives in medium to wet soils and partial sun conditions.
The USDA PLANTS Database (opens in new tab) does not flag Squarrose Sedge as toxic to livestock.
Light
part sun
Water
medium
Size
12"–36" H × 6"–18" W
Bloom
May, Jun, Jul
Native to
AL, AR, CT, DE and 24 more states
Squarrose sedge is a native grass-like perennial that forms neat clumps with arching green foliage. It produces distinctive spiky seed heads from late spring through summer and tolerates partial shade well. The plant goes dormant in winter, turning brown before new growth emerges in spring.
Growing Squarrose Sedge
Grow Squarrose Sedge in part sun and medium water. Mature plants reach 12 to 36 inches tall and spread 6 to 18 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Squarrose 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.
- Requires consistently high water which may appear overwatered in maintained landscapes
- Bristly seed heads can look unkempt to conventional standards
- Unknown dormancy appearance creates uncertainty
Wildlife value
This sedge provides nesting material and cover for birds, while its seeds feed various songbirds in fall and winter. The foliage offers habitat for beneficial insects and small wildlife.
Common questions
- Where is Carex squarrosa native to?
- Carex squarrosa is native to 31 states across the eastern and central United States, from Massachusetts south to Georgia and Louisiana, and west to Kansas and Minnesota.
- When does Squarrose Sedge bloom?
- Carex squarrosa blooms from May through July, producing characteristic sedge flower spikes during late spring and early summer.
- What growing conditions does Carex squarrosa prefer?
- Squarrose Sedge grows best in partial sun with medium to high moisture conditions. It tolerates a range from full sun to partial shade but requires consistent moisture.
- Is Squarrose Sedge toxic to livestock?
- The USDA PLANTS Database does not flag Squarrose Sedge as toxic to livestock.
- Is Squarrose Sedge HOA-friendly?
- Squarrose 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 Squarrose Sedge? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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