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String Sedge

Carex chordorrhiza

Last reviewed: August 2026

String Sedge (Carex chordorrhiza)
Photo: Johann Georg Sturm (Painter: Jacob Sturm) / Wikimedia Commons (Public domain)

Toxicity unknown

String Sedge (Carex chordorrhiza) 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

full sun

Water

high

Size

4"–12" H × 6"–18" W

Bloom

May, Jun, Jul

Native to

IA, IL, IN, ME and 8 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 445 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

String sedge is a low-growing native grass that forms dense mats in wet areas. It thrives in consistently moist to wet soils and produces small flower spikes in late spring and summer.

In an HOA neighborhood

String 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 maintenance issues
  • Very informal appearance doesn't match typical landscaping expectations
  • Can spread aggressively and look uncontrolled

Wildlife value

This sedge provides habitat for wetland wildlife and its seeds may feed small birds, though it's not a major pollinator plant.

Common questions

How much sun does String Sedge need?
String Sedge grows best in full sun conditions.
When does String Sedge bloom?
String Sedge blooms in May, June, and July.
Where is String Sedge native?
String Sedge (Carex chordorrhiza) is native to IA, IL, IN, ME and 8 more states, per the World Checklist of Vascular Plants (Kew).
Is String Sedge HOA-friendly?
String 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 World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

Not sure where to start? Take the 2-minute yard quiz