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Clustered Field Sedge

Carex praegracilis

Last reviewed: June 2026

Carex praegracilis is a native sedge found across western and midwestern United States that blooms from May through August. This clustered field sedge thrives in wet to moderately moist soils and full sun conditions.

Clustered Field Sedge (Carex praegracilis)
Photo: (c) Steve Matson, some rights reserved (CC BY), uploaded by Steve Matson

The USDA PLANTS Database (opens in new tab) does not flag Clustered Field Sedge as toxic to livestock.

Light

full sun

Water

high

Size

12"–36" H × 6"–18" W

Bloom

May, Jun, Jul, Aug

Native to

AZ, CA, CO, IA and 25 more states

Pollinators

beetles, flies

Carex praegracilis is a native sedge that forms dense, carpet-like colonies through underground rhizomes. This hardy grass-like perennial produces narrow green leaves and inconspicuous flower spikes during summer months. It thrives in moist conditions and full sun, making it excellent for areas with consistent irrigation.

Growing Clustered Field Sedge

Grow Clustered Field Sedge in full sun and high 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

Clustered Field 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.

  • Aggressive spreading habit can appear unkempt
  • High water requirements may seem excessive
  • Grass-like appearance may be mistaken for unmowed lawn

Wildlife value

This sedge provides habitat and food for beetles and flies during its extended blooming period from May through August. The dense growth also offers nesting material and cover for small wildlife.

Common questions

Where does Carex praegracilis naturally grow?
Clustered Field Sedge is native to 30 states across the western and midwestern United States, including Arizona, California, Colorado, Idaho, Montana, and many Great Plains and Great Lakes states.
When does Clustered Field Sedge bloom?
Carex praegracilis produces flowers from May through August, with peak blooming typically occurring in early to mid-summer.
What pollinators visit Carex praegracilis?
Beetles and flies are the primary pollinators of Clustered Field Sedge, as is typical for many sedge species that produce wind-dispersed pollen but also attract these insect visitors.
What growing conditions does this sedge prefer?
Carex praegracilis grows best in full sun to partial sun with consistently moist to wet soil conditions, making it well-suited for rain gardens and wetland edges.
Is Clustered Field Sedge toxic to livestock?
The USDA PLANTS Database does not flag Clustered Field Sedge as toxic to livestock.
Is Clustered Field Sedge HOA-friendly?
Clustered Field 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 Clustered Field Sedge? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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