Wild About Flowers
Arnica cordifolia - Heart-Leaved Arnica
Arnica cordifolia - Heart-Leaved Arnica
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Heart-Leaved Arnica is a hardy, spreading perennial with cheerful yellow, daisy-like flowers that bloom from late spring into early summer. Its distinctive, heart-shaped leaves form a lush, low-growing carpet, making it an excellent choice for naturalized ground cover in woodland gardens, shaded borders, and open meadows. The bright blooms draw in bees, butterflies, and other pollinators, adding seasonal color and movement to the landscape.
Heart-Leaved Arnica prefers well-drained sandy or loamy soils and spreads gradually by rhizomes, filling in spaces without becoming overly aggressive. While the foliage is generally unpalatable, occasional browsing may occur in areas with high deer populations or limited forage; however, it recovers quickly thanks to its resilient, spreading root system.
How Easy Is This Plant to Grow?
Plant Sizes & Blooming Window
Plant Sizes & Blooming Window
Important Information - The "Plant Sizes" are provided as a general guideline for plant selection. The "Blooming Window" indicates the general period when the species is in bloom, not how long an individual plant will flower.
Plant growth and bloom times will vary depending on geographical location & individual site conditions. Please scroll down to see the specific information for this plant.
Edible & Medicinal Info Disclaimer
Edible & Medicinal Info Disclaimer
The Edible & Medicinal information on this site is for informational purposes only and should not be acted on without thorough research and professional guidance. We are not responsible for any adverse effects resulting from the use of or misidentification of plants.
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Plant Specifics
Seeds Per Pack
Seeds Per Package: 20
Light Conditions
- Shade
- Part Shade
- Sun
Soil Conditions
- Well Drained
- Loam
- Sandy
Height
- Under 6"
- Under 12"
- 12" - 24"
Width
- Spreading
Bloom Colour
- Yellow
Month of Bloom
- June
- July
- August
Vigorousness
- Fast
- Aggressive
Deer Resistance
- Moderate
Features
- Butterflies
- Bees
- Long Bloom Time
- Used as Groundcover
- Urban Spaces
- Rural Spaces
- Medicinal Properties
- Toxic or Posionous Parts
Chinook Exposure
- Moderate
Distribution Info
Native to western Canada, Heart-Leaved Arnica is found from BC to ON and YT as well as into the Pacific NW, flourishing in open forests, and meadows, in the foothills, montane and sub-alpine regions.
Traditional Edible & Medicinal Info
Arnica species have been traditionally valued for their medicinal properties, their leaves and flowers contain anti-inflammatory compounds used in salves and poultices to treat bruises, sprains, and sore muscles.
⚠️ Toxicity Note: Arnica species should only be used externally, as internal use can be toxic and may cause serious side effects.