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Fringed grass of Parnassus

Parnassia fimbriata

Also called Rocky Mtn. grass of Parnassus

Fringed grass of Parnassus
Photo: JW Stockert, Public domain

Fringed grass of Parnassus is a small perennial wildflower of cold, wet alpine and subalpine meadows in western North America, not a true grass. It is best grown in a cool, moist, sunny spot, and only a few specialist growers keep it in gardens.

Family
Parnassiaceae (Parnassi family)
Grows as
Grass
Light
Full sun, Part shade
Water
Keep the soil consistently moist and never let it dry out.
Soil
Cool, moist, humus-rich soil or a gritty, wet-bog style mix.
Temperature
5–20 °C; tolerates hard frost but not heat.
How easy
Hard
Native range
Subarctic America to W. & WC. U.S.A.
Climate
subalpine or subarctic

About

Parnassia fimbriata is a species of flowering plant in the family Celastraceae known by the common name fringed grass of Parnassus. It was first described by Charles Konig. It is native to western North America from Alaska and northwestern Canada to the southern Rocky Mountains, where it is a plant of alpine and subalpine environments, usually in wet areas. Despite the common name, this is not a true grass.

Other Parnassia plants

Kidneyleaf grass of Parnassus · California grass of Parnassus · Carolina grass of Parnassus · Fen grass of Parnassus · Largeleaf grass of Parnassus · Marsh grass of Parnassus · Bog-stars

Text excerpted from the Wikipedia article Parnassia fimbriata 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.

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