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Northern Cluster Sedge

Carex arcta

Last reviewed: October 2026

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

Toxicity unknown

Northern Cluster Sedge (Carex arcta) 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.

Light

part shade

Water

medium

Size

12"–24" H × 6"–12" W

Bloom

May, Jun

Native to

CA, ID, MA, ME and 9 more states

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 459 programs across 44 states, each with a link to the provider and the date we last checked it.

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Browse plants for this ecoregion

Coast RangePuget LowlandMarine West Coast ForestNorthwestern Forested MountainsNorth American DesertsNorthern Lakes and ForestsNorth Central Hardwood Forests

Northern cluster sedge is a compact native grass-like plant that forms neat clumps with slender green foliage. It produces small, clustered flower heads in late spring to early summer and thrives in partially shaded areas with consistent moisture.

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In an HOA neighborhood

Northern Cluster Sedge is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

Wildlife value

This sedge provides seeds for birds and nesting material, while its foliage offers cover for small wildlife. The flowers attract some beneficial insects, though it is primarily wind-pollinated.

Common questions

How much sun does Northern Cluster Sedge need?
Northern Cluster Sedge grows best in part shade conditions.
When does Northern Cluster Sedge bloom?
Northern Cluster Sedge blooms in May and June.
Where is Northern Cluster Sedge native?
Northern Cluster Sedge (Carex arcta) is native to CA, ID, MA, ME and 9 more states, per the World Checklist of Vascular Plants (Kew).
Is Northern Cluster Sedge HOA-friendly?
Northern Cluster Sedge is generally an HOA-friendly choice in the right placement, with low maintenance.

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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