Arnica chamissonis is native to North America and is grown as a lower elevation substitute for A. montana, the European variety. Used externally by Western herbalists to treat pain and inflamation from sprains, muscle strain, and bruises.
Water: Needs lots of water
Hardiness: Frost Hardy
Habit: Cold hardy creeping perennial that spreads prolifically by rhizomes over Winter, Summer blooming yellow aster-type flowers, 8" to 13" tall
Light: Full Sun to Partial Shade
Soil: Moist, slightly acidic soil
Origin: North America, mid to high elevations of Canada and Alaska