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Purple Grass

Muhlenbergia capillaris

Last reviewed: June 2026

Muhlenbergia capillaris is a native ornamental grass producing showy purple plumes from August through October. This drought-tolerant species grows throughout the southeastern and south-central United States.

Purple Grass (Muhlenbergia capillaris)
Photo: (c) Lauren McLaurin, some rights reserved (CC BY), uploaded by Lauren McLaurin

The USDA PLANTS Database (opens in new tab) does not flag Purple Grass as toxic to livestock.

Light

full sun

Water

low

Size

24"–36" H × 24"–36" W

Bloom

Aug, Sep, Oct

Native to

AL, AR, CT, DE and 22 more states

Pollinators

bees, butterflies, moths

Purple grass is an elegant native ornamental grass that forms neat clumps with fine-textured foliage. In late summer and fall, it produces stunning clouds of pink to purple flower plumes that create a soft, airy display above the green leaves.

Growing Purple Grass

Grow Purple Grass in full sun and low water. Mature plants reach 24 to 36 inches tall and spread 24 to 36 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Purple Grass is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

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

  • May look sparse in winter after cutting back

Wildlife value

The showy fall blooms attract bees, butterflies, and moths during their peak flowering period. Seeds provide food for birds through winter months.

Common questions

When does Muhlenbergia capillaris bloom?
Purple Grass blooms from August through October, producing distinctive purple to pinkish flower plumes.
What pollinators visit Muhlenbergia capillaris?
Bees, butterflies, and moths are attracted to Purple Grass during its blooming period.
Where is Muhlenbergia capillaris native?
Purple Grass is native to much of the eastern and south-central United States, from Connecticut south to Florida and west to Kansas and Texas.
What growing conditions does Muhlenbergia capillaris prefer?
This grass thrives in full sun locations with low to moderate water requirements, making it an excellent drought-tolerant landscape choice.
Is Purple Grass toxic to livestock?
The USDA PLANTS Database does not flag Purple Grass as toxic to livestock.
Is Purple Grass HOA-friendly?
Purple Grass is generally an HOA-friendly choice in the right placement, with low maintenance.

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 Purple Grass? 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