considerations for growing arnica
climate
Mexican Arnica prefers a sunny location and can tolerate temperatures down to -12°C (10°F).
soil
Grow Mexican Arnica on dry to moderately moist soil. The soil should be
gritty-sandy or gritty-loamy soil.
growing
Grow from seeds or root (rhizome) divisions.
harvesting
Mexican Arnica flowers are normally taken when they are in full, fresh bloom
in mid to late Summer. The stem is not used and can be discarded.
Rhizomes can be collected in the fall after the foliage has died off.
Rhizomes are one to two inches long, cylindrical, and are often scarred
where old stems have broken off. The rhizomes are dried and powdered and
used in the same proportions as dried flowers.
preserving
Store as a tincture, as dried flowers, or as a ground powder in a cool, dry
place. Refrigeration or freezing is recommended but not required.
please note
External use only.