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Chestnut Sedge

Carex castanea

Last reviewed: August 2026

Chestnut Sedge (Carex castanea)
Photo: Stoneville Weed Science Laboratory Herbarium, Jamie Whitten Delta States Research Center, Stoneville, Mississippi, as of January 2012, it has been part of the Mississippi Museum of Natural Science; entire herbarium is public domain[1] / Wikimedia Commons (CC0)

Light

part shade

Water

medium

Size

8"–24" H × 6"–12" W

Bloom

May, Jun

Native to

CT, ME, MI, MN and 5 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 432 programs across 44 states, each with a link to the provider and the date we last checked it.

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Chestnut sedge is a compact native grass that forms small, tidy clumps with narrow green leaves. It produces inconspicuous brownish flower spikes in late spring and early summer, making it an excellent groundcover for partly shaded areas.

In an HOA neighborhood

Chestnut 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 habitat and food for various native insects and small wildlife. The seeds are eaten by birds, and the dense clumps offer shelter for beneficial insects.

Common questions

How much sun does Chestnut Sedge need?
Chestnut Sedge grows best in part shade conditions.
When does Chestnut Sedge bloom?
Chestnut Sedge blooms in May and June.
Where is Chestnut Sedge native?
Chestnut Sedge (Carex castanea) is native to CT, ME, MI, MN and 5 more states, per the World Checklist of Vascular Plants (Kew).
Is Chestnut Sedge HOA-friendly?
Chestnut 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.

Ready to grow Chestnut Sedge? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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