How much sun does Jointed-Spike Sedge need?

Jointed-Spike Sedge grows best in part sun conditions.

When does Jointed-Spike Sedge bloom?

Jointed-Spike Sedge blooms in May, June, and July.

Where is Jointed-Spike Sedge native?

Jointed-Spike Sedge (Carex athrostachya) is native to AZ, CA, CO, ID and 10 more states, per vouchered herbarium specimen records and regional native plant society lists.

Is Jointed-Spike Sedge toxic to livestock?

The USDA PLANTS Database does not flag Jointed-Spike Sedge as toxic to livestock.

Is Jointed-Spike Sedge HOA-friendly?

Jointed-Spike Sedge is generally an HOA-friendly choice in the right placement, with low maintenance.

Jointed-Spike Sedge

Name: Pollinator Patch
Author: Pollinator Patch

Carex athrostachya

Last reviewed: August 2026

Toxicity unknown

Jointed-Spike Sedge (Carex athrostachya) 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 Jointed-Spike Sedge as toxic to livestock.

Light

part sun

Water

medium

Size

8"–24" H × 6"–12" W

Bloom

May, Jun, Jul

Native to

AZ, CA, CO, ID and 10 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 437 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

Coast Range Puget Lowland Marine West Coast Forest Northwestern Forested Mountains Sierra Nevada Central California Foothills and Coastal Mountains Southern California Mountains North American Deserts Central Basin and Range Southern Rockies Arizona/New Mexico Mountains High Plains Northwestern Glaciated Plains Northwestern Great Plains

Carex athrostachya is a clumping native sedge that forms neat, compact tufts of slender green foliage. This drought-tolerant grass grows in a well-behaved mounding habit and produces inconspicuous flower spikes in late spring and early summer.

In an HOA neighborhood

Jointed-Spike 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 nesting material for small birds and ground-dwelling wildlife. The seeds offer food for songbirds and small mammals in late summer.

Common questions

How much sun does Jointed-Spike Sedge need?: Jointed-Spike Sedge grows best in part sun conditions.
When does Jointed-Spike Sedge bloom?: Jointed-Spike Sedge blooms in May, June, and July.
Where is Jointed-Spike Sedge native?: Jointed-Spike Sedge (Carex athrostachya) is native to AZ, CA, CO, ID and 10 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Jointed-Spike Sedge toxic to livestock?: The USDA PLANTS Database does not flag Jointed-Spike Sedge as toxic to livestock.
Is Jointed-Spike Sedge HOA-friendly?: Jointed-Spike Sedge is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

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