How much sun does Purple Reedgrass need?

Purple Reedgrass grows best in full sun conditions.

When does Purple Reedgrass bloom?

Purple Reedgrass blooms in June, July, and August.

Where is Purple Reedgrass native?

Purple Reedgrass (Calamagrostis purpurascens) is native to CA, CO, ID, MN and 9 more states, per the World Checklist of Vascular Plants (Kew).

Is Purple Reedgrass HOA-friendly?

Purple Reedgrass is generally an HOA-friendly choice in the right placement, with low maintenance.

Purple Reedgrass

Name: Pollinator Patch
Author: Pollinator Patch

Calamagrostis purpurascens

Last reviewed: August 2026

Toxicity unknown

Purple Reedgrass (Calamagrostis purpurascens) 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

low

Size

12"–36" H × 6"–18" W

Bloom

Jun, Jul, Aug

Native to

CA, CO, ID, MN and 9 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 452 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

Northwestern Forested Mountains Sierra Nevada Central Basin and Range Southern Rockies Southwestern Tablelands Northwestern Glaciated Plains Northwestern Great Plains

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.

Common questions

How much sun does Purple Reedgrass need?: Purple Reedgrass grows best in full sun conditions.
When does Purple Reedgrass bloom?: Purple Reedgrass blooms in June, July, and August.
Where is Purple Reedgrass native?: Purple Reedgrass (Calamagrostis purpurascens) is native to CA, CO, ID, MN and 9 more states, per the World Checklist of Vascular Plants (Kew).
Is Purple Reedgrass HOA-friendly?: Purple Reedgrass 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.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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

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