
Heart-leaf arnica
Arnica cordifolia
Heart-leaf arnica is a charming mountain wildflower native to western North America that produces cheerful yellow daisy-like blooms in spring and early summer. It prefers cool, well-drained soils and partial shade, mimicking its natural montane forest habitat, and benefits from consistent moisture during the growing season. Widely known for its medicinal properties, it makes a beautiful and meaningful addition to native or woodland gardens.
Care Level
Moderate
Sun
Partial Shade
Water
Moderate
Growth Rate
Fast
Mature Height
12″ – 24″
Soil
loam
Life Cycle
Perennial
Spacing
18″
Flowers
yellow
Watering Schedule
Every 7-10 Days • Water Moderately To Keep Soil Evenly Moist But Never Waterlogged; Reduce Frequency In Cooler Months
Soil pH
6 – 8
Temperature
-40° – 85°F
Mature Spread
up to 18″
Root Depth
Medium
Foliage
Coarse
Propagation: Seed
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Jul 5, 2021 by David Dodge (cc-by-sa)
No nurseries currently have this species in stock.