Heartleaf Arnica
Arnica cordifolia
Family: Asteraceae or Compositae
What it is like
Arnica cordifolia is a PERENNIAL growing to 0.5 m (1ft 8in). See above for USDA hardiness. It is hardy to UK zone 2. It is in flower in July. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid and neutral soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
Height (m): 0.5
Where it is found
Woodlands in foothills up to high elevations in mountains.
Western N. America - Alaska to New Mexico.
Conservation Status:
Countries/locations it is found in
How it is used
Food
Rating: 0
Medicine
Rating: 2
The whole plant is antiecchymotic, antiphlogistic, nervine, sternutatory and vulnerary. When applied intravenously or orally it causes a rise in body temperature. All parts of the plant may be used, but the flowers are used in preference to the root. They have a discutient property and a tincture is used as an external application to swellings, sprains, bruises and wounds. A salve applied to cuts helps to keep down infections.
Antiecchymotic: Prevents or treats bruising.
Antiphlogistic: Reduces inflammation.
Nervine: Stimulates and calms the nerves.
Salve: Soothes and heals damaged skin.
Sternutatory: Promotes sneezing and nasal discharges.
Vulnerary: Promotes the healing of wounds.
Other
Rating:
This plant is used as a hair conditioner. No further details are given.
Hair: Plants used as hair shampoos, tonics, to treat balding etc.
How it is grown
Prefers a moist, well-drained humus rich soil, preferably lime-free. Prefers a mixture of sand, loam and peat.
Propagating it: Seed - sow early spring in a cold frame. Only just cover the seed and make sure that the compost does not dry out. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse or cold frame for their first winter. Plant out in late spring or early summer. Division in spring.
Best place to grow: Woodland Garden Sunny Edge;
Habit: Perennial
Hardiness: 0-0
Growth:
Soil: Light (sandy), medium, heavy (clay)
Shade: Semi-shade, no shade
Moisture: Moist
Things to keep in mind
The whole plant is toxic and should only be used for external applications to unbroken skin.