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Purple Reedgrass

Calamagrostis purpurascens

Last reviewed: June 2026

Purple Reedgrass (Calamagrostis purpurascens)
Photo: Patrick Alexander from Las Cruces, NM / Wikimedia Commons (CC0)

Light

full sun

Water

low

Size

12"–36" H × 6"–18" W

Bloom

Jun, Jul, Aug

Native to

CA, CO, ID, MN and 9 more states

Browse plants for this ecoregion

Purple reedgrass is a native bunch grass that forms attractive clumps with narrow blue-green foliage. It produces delicate purple-tinged flower heads in summer that age to golden tan, adding seasonal interest to drought-tolerant landscapes.

In an HOA neighborhood

Purple Reedgrass 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 dormant in winter if not evergreen

Wildlife value

This grass provides nesting material and shelter for birds, while its seeds feed various songbirds and small mammals. The flowers attract beneficial insects during the blooming period.

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.

Does Purple Reedgrass fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.