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Alpine feverfew

Parthenium alpinum

Also called Arkansas River Feverfew

Alpine feverfew is a small, mat-forming, long-lived perennial native to dry grasslands and shrublands of Wyoming, Colorado and New Mexico. It is grown mainly as a hardy, drought-tolerant rock garden or xeric plant that needs sun, lean soil and very sharp drainage.

Family
Asteraceae (Daisy family)
Grows as
Perennial
Light
Full sun
Water
Water sparingly, letting the soil dry fully between waterings; it is adapted to dry sites.
Soil
Thin, gravelly, very well-drained soil, ideally limestone-rich or grit-amended.
Temperature
Cold hardy, tolerating winter cold well in its native range; protect from prolonged wet cold.
How easy
Moderate
Native range
Wyoming to New Mexico

About

Parthenium alpinum is a species of flowering plant in the aster family known by the common names alpine feverfew and Wyoming feverfew. It is native to Wyoming, Colorado, and New Mexico in the United States.

This is a small, mat-forming, long-lived perennial herb with gray-green, hairy leaves and solitary flower heads. The heads contain whitish or greenish disc florets and a few pistillate ray florets that do not have ligules. Flowering occurs in mid-April through mid-May.

Other Parthenium plants

Guayule · Gray's feverfew · Santa Maria feverfew · Mariola · Wild quinine · Feverfew

Text excerpted from the Wikipedia article Parthenium alpinum 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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