Asteraceae
Arnica
Arnica latifolia
Also known as Arnica latifolia var. teucriifolia, Arnica laevigata, Arnica eriopoda, Arnica intermedia
Flowering Plants · Edibles & Herbs · Native Plants · Arnica · Medicinal Herb · Alpine Wildflower · Yellow Flowers · Native Wildflower · Mountain Plant · Pollinator · Rock Garden · Western Native · Herbal
Broadleaf arnica is a mountain wildflower native to western North America, valued for its bright yellow daisy-like blooms and long history of topical medicinal use. Grow it in cool, moist, well-drained soil in partial shade, mimicking its natural alpine meadow or open forest habitat. It can be tricky to establish outside its native range but thrives in rock gardens or naturalized alpine beds with consistent moisture and good drainage.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water consistently to keep soil evenly moist but never waterlogged; reduce watering in dormancy · Every 7-10 days during active growth
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 6–7.2
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 10 ft – 30 ft
- Spread
- 15 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yellow
- Foliage
- Green · Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alaska, Alberta, British Columbia, California, Colorado, Idaho, Montana, Northwest Territorie, Oregon, Utah, Washington, Wyoming, Yukon
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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