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Clustered Field Sedge

Carex praegracilis

Last reviewed: August 2026

Carex praegracilis is a spreading, grass-like sedge that blooms from May through August in full sun with consistently moist soil. It suits wet meadows, rain gardens, and lawn alternatives across a wide range of climates.

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

Toxicity unknown

Clustered Field Sedge (Carex praegracilis) 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.

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

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 area

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

When does Carex praegracilis bloom?
Carex praegracilis blooms from May through August, forming small spikelets rather than showy flowers.
What pollinators visit Carex praegracilis?
Beetles and flies are the recorded visitors to Carex praegracilis, though like most sedges it depends mainly on wind for pollen movement.
How much water does Carex praegracilis need?
This sedge grows best with regular to high moisture and handles occasional standing water, which makes it useful in wet meadows and rain gardens.
Does Carex praegracilis need full sun?
It forms its densest, most upright growth in full sun but can tolerate part shade, especially in hotter regions.
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.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from the World Checklist of Vascular Plants (Kew). 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.

See all plant problem guides

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