Asteraceae
Arnica lanceolata subsp. prima
Arnica lanceolata subsp. prima
Also known as Arnica amplexifolia var. trina, Arnica hirticaulis, Arnica mollis var. aspera, Arnica lanceolata subsp. amplexicaulis
Flowering Plants · Edibles & Herbs · Native Plants · Arnica · Medicinal Herb · Alpine Perennial · Native Wildflower · Yellow Flower · Asteraceae · Pacific Northwest · Herbal Plant · Pollinator
Lanceleaf arnica is a native North American wildflower prized for its bright yellow daisy-like blooms and well-known medicinal properties in herbal traditions. It prefers cool, moist, partially shaded conditions similar to mountain meadows and open woodlands in the Pacific Northwest and Alaska. Plant in humus-rich, well-drained soil and avoid hot, dry summers for the best performance.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water consistently to keep soil evenly moist; avoid prolonged drying out · Every 7-10 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 6–7.3
- Temperature
- -10°F to 85°F
- Cycle
- Perennial
Hardiness
USDA 5a-9b
Form & growth
Mature size and habit
- Mature height
- 18 in – 3 ft
- Spread
- 2 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alaska, Alberta, British Columbia, California, Idaho, Montana, Nevada, Northwest Territorie, Oregon, Utah, Washington, Wyoming, Yukon
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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