Heartleaf Arnica

Arnica cordifolia Hook.

Aster family

Plant Type

Forb/herb

Life Cycle

Perennial

Mature Height

18 inches

Spread

3.0 feet

Flower Color

Yellow

Bloom Time

Late Spring

Growing Conditions

Light

Shade Tolerance Tolerant

Water

Water Use High

Drought Tolerance Low

Flood Tolerance None

Soil

Soil Types Clay, Loam, Sand

CaCO3 Tolerance Low

Fertility Need Medium

Stress Tolerance

Fire Tolerance High

Salt Tolerance None

Climate

pH Range 6.0 – 8.0

Frost-Free Days 130 days

Precipitation 10 – 35 in

Ecosystem & Wildlife

Pollinators Native Bees; Bombus; Beetles, Wasps, Flies; Butterflies; Larval Host (Moth)

Larval Host Bucculatrix arnicella

Fall Color No

Evergreen No

Native Range

CAN: Alberta, British Columbia, Manitoba, Northwest Territorie, Ontario, Saskatchewan, Yukon
USA: Arizona, California, Colorado, Idaho, Michigan, Montana, Nevada, New Mexico, Oregon, South Dakota, Utah, Washington, Wyoming

Regional Native Status: L48 (N), AK (N), CAN (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.