Bottlebrush Sedge
Carex hystericina
Last reviewed: June 2026
Carex hystericina (Bottlebrush Sedge) is a native wetland sedge found across much of North America, blooming May through July. This moisture-loving plant thrives in partial sun to partial shade conditions.
Light
part sun
Water
high
Size
12"–36" H × 12"–24" W
Bloom
May, Jun, Jul
Native to
AR, AZ, CO, CT and 27 more states
Browse plants for this ecoregion
Bottlebrush sedge is a clumping perennial grass-like plant that forms neat tufts of narrow green leaves. It produces distinctive cylindrical seed heads that resemble bottlebrushes in late spring through summer, giving the plant its common name.
Growing Bottlebrush Sedge
Grow Bottlebrush Sedge in part sun and high water. Mature plants reach 12 to 36 inches tall and spread 12 to 24 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Bottlebrush 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 moist to wet conditions that may appear overwatered
- Seed heads can look untidy as they mature and dry
- May go dormant and look brown in dry conditions
Wildlife value
This sedge provides habitat and nesting material for birds, while its seeds feed waterfowl and songbirds. The dense clumps offer shelter for small wildlife and beneficial insects.
Common questions
- Where does Carex hystericina naturally grow?
- Bottlebrush Sedge is native to 32 states across North America, from Maine to Oregon and from Montana south to Texas and Arizona.
- When does Bottlebrush Sedge bloom?
- Carex hystericina produces its distinctive bottlebrush-like flower spikes from May through July.
- What growing conditions does this sedge prefer?
- This sedge requires consistently moist to wet soils and performs best in partial sun to partial shade locations, making it ideal for wetland gardens and rain gardens.
- How can I identify Bottlebrush Sedge?
- The plant gets its common name from its distinctive cylindrical seed heads that resemble a bottlebrush, with inflated perigynia (seed cases) that give the spike a fuzzy appearance.
- Is Bottlebrush Sedge HOA-friendly?
- Bottlebrush 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 Bottlebrush Sedge? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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