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Arnica cordifolia
Arnica cordifolia
Arnica cordifolia
Arnica cordifolia

Arnica cordifolia

TAXONOMY

FamilyAsteraceae
GenusArnica
Zone3

ABOUT

Arnica cordifolia, commonly known as heartleaf arnica, is a perennial herb in the Asteraceae family. It is native to North America, particularly in the mountainous regions. The plant is known for its heart-shaped leaves and bright yellow flowers. It typically goes dormant in the winter months.

ALSO KNOWN AS

Senecio Cumingii
Arnica cordifolia subsp. cordifolia
Arnica cordifolia subsp. whitneyi
Arnica cordifolia var. pumila
Arnica cordifolia var. whitneyi
Arnica macrophylla
Arnica paniculata
Arnica parviflora
Arnica pumila
Arnica whitneyi
Heartleaf arnica

OVERVIEW

WaterMoist
SoilLoamy
LightIndirect Bright (6 Hours)
Temperature15° C
Humidity60%
Dormancy4 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Heartleaf arnica prefers moderate temperatures and indirect bright light. It thrives in environments with moderate humidity and should be watered when the soil partially dries out. Avoid overwatering to prevent root rot.
Soil
Arnica cordifolia prefers well-draining loamy soil. It can tolerate a range of soil types but performs best in soil that retains some moisture without becoming waterlogged. Ensure good drainage to prevent root issues.
Fertilizer
This plant does not have high fertilizer requirements. If needed, a balanced, slow-release fertilizer can be applied sparingly during the growing season.
Repotting
Repotting is generally not necessary for Arnica cordifolia unless it outgrows its current space. If repotting is needed, do so in the early spring before the growing season begins. Use a well-draining soil mix.
Propagation
Arnica cordifolia can be propagated by seed or division. The best time to propagate by division is in the early spring. For seed propagation, sow seeds in a well-draining soil mix and keep them moist until germination.
Pruning
Pruning is not typically required for this plant. However, you can remove spent flowers and dead leaves to maintain its appearance and encourage new growth.
Toxicity
Arnica cordifolia is toxic if ingested and can cause severe irritation. It is particularly toxic to pets and humans if consumed. Handle with care and keep out of reach of children and animals.
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How To Grow Arnica cordifolia | EarthOne