Purple reedgrass is a clump-forming perennial grass of cool northern and mountain climates, valued for its purple-tinted flower heads. It does best in cool conditions with moisture and good drainage, and it is not a plant for hot, humid lowlands.
Family
Poaceae (Grass family)
Grows as
Grass, Perennial
Light
Full sun, Part shade
Water
Water regularly while establishing, then keep soil evenly moist but never waterlogged.
Soil
Moist, well-drained loam; tolerates a range of soil types.
Temperature
10–22 °C; very cold-hardy, tolerates hard winters.
How easy
Easy
Native range
Subarctic to NE. Mexico
Climate
temperate
About
Calamagrostis purpurascens, is a perennial grass commonly known as purple reedgrass, purple pinegrass, or alpine reedgrass.
Where it grows
Calamagrostis purpurascens is native from arctic Greenland, to much of Canada (Alberta, British Columbia, Manitoba, Newfoundland, Northwest Territories, Nunavut, Ontario, Quebec, Saskatchewan, and Yukon Territory) and the western and northern U.S. (Alaska, California, Colorado, Idaho, Minnesota, Montana, Nevada, New Mexico, Oregon, South Dakota, Utah, Washington, and Wyoming). It is rare and scattered in the southern U.S. states, such as Louisiana, where it is a post-glacial relict.
Text excerpted from the Wikipedia article Calamagrostis purpurascens by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.