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Northwest Territory Sedge

Carex utriculata

Last reviewed: June 2026

Northwest Territory Sedge (Carex utriculata)
Photo: Hurd, E.G., N.L. Shaw, J. Mastrogiuseppe, L.C. Smithman, and S. Goodrich. / Wikimedia Commons (Public domain)

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

Light

part sun

Water

high

Size

12"–48" H × 6"–24" W

Bloom

May, Jun, Jul

Native to

AZ, CA, CO, CT and 25 more states

Browse plants for this ecoregion

Coast RangeSierra NevadaSouthern California MountainsCentral Basin and Range

Northwest territory sedge is a tall, clumping wetland grass that forms dense colonies in consistently moist to wet soils. This deciduous sedge produces narrow green leaves and inconspicuous flower spikes in late spring through summer. It naturally occurs in marshes, wet meadows, and along water edges throughout much of North America.

In an HOA neighborhood

Northwest Territory Sedge takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Requires consistently wet conditions that may create drainage concerns
  • Can spread aggressively and look unkempt
  • Dies back completely in winter leaving bare patches

Wildlife value

This sedge provides nesting material and cover for waterfowl and marsh birds. The seeds feed various songbirds and waterfowl, while the dense growth offers shelter for small wildlife in wetland areas.

Common questions

How much sun does Northwest Territory Sedge need?
Northwest Territory Sedge grows best in part sun conditions.
When does Northwest Territory Sedge bloom?
Northwest Territory Sedge blooms in May, June, and July.
Where is Northwest Territory Sedge native?
Northwest Territory Sedge (Carex utriculata) is native to AZ, CA, CO, CT and 25 more states, per the USDA PLANTS Database and regional native plant society lists.
Is Northwest Territory Sedge toxic to livestock?
The USDA PLANTS Database does not flag Northwest Territory Sedge as toxic to livestock.
Is Northwest Territory Sedge HOA-friendly?
Northwest Territory 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 Northwest Territory Sedge? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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