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Hairy Arnica

Arnica mollis

Last reviewed: June 2026

Hairy Arnica (Arnica mollis)
Photo: Bob Greenburg / Wikimedia Commons (Public domain)

Light

full sun

Water

low

Size

6"–18" H × 6"–12" W

Bloom

May, Jun, Jul

Native to

CA, CO, ID, MT and 5 more states

Pollinators

bees, butterflies, beetles

Browse plants for this ecoregion

Hairy arnica is a compact native wildflower that produces bright yellow daisy-like blooms from May through July. This low-growing perennial forms small clumps and thrives in full sun with minimal water once established. Its modest size and cheerful flowers make it a charming addition to rock gardens and naturalized areas.

In an HOA neighborhood

Hairy Arnica takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Common name includes 'hairy' which sounds undesirable
  • Wildflower appearance may be seen as weedy
  • Unknown dormancy appearance creates maintenance uncertainty

Wildlife value

The bright yellow flowers attract bees, butterflies, and beetles during the late spring and summer blooming period. This native plant provides important nectar resources for pollinators during peak activity months.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Does Hairy Arnica fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.