Arnica diversifolia -

Family:	Compositae
Habit:	Perennial
Height:	0.3
Synonyms:
Range:	Western N. America - Alaska to California.

Arnica diversifolia () is a Perennial which grows to a height of 0.3m . It has a hardness rating of 0.
The flowers from this plant are hermaphrodite (has both male and female organs) and they are pollinated by Apomyctic, insects

Soil Information

Arnica diversifolia will grow in light (sandy),medium (loamy),hard (clay) soil. It is / is important for the soil to be well drained.
The soil prefers the following PH / acid levels :
- pH of less than 6, Acidic soils
- pH between 6 and 8, Neutral soils
Arnica diversifolia prefers moist soils

Ideal Planting Locations

Arnica diversifolia can grow in semi or areas with no shade.

Rocky places from moderate to high elevations in mountains[60].

Planting places suited to this plant described below.

• Grows within a woodland garden
• Grows on a sunny edge

Cultivation Details

We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. This is a convenient name for a complex of apparent hybrids involving A. mollis or A. amplexicaulis with A. cordifolia or A. latifolia[60]. The following notes are based on the general needs of the genus. Prefers a moist, well-drained humus rich soil, preferably lime-free. Prefers a mixture of sand, loam and peat.

Edible Uses*

* See disclaimer
Edible Rating: 0/5
None known

Medicinal Uses*

* See disclaimer
Medicinal Rating: 1/5
Antiecchymotic, antiphlogistic, nervine, sternutatory, vulnerary[172].

• Antiecchymotic - Prevents or treats bruising.
• Antiphlogistic - Reduces inflammation.
• Nervine - Stimulates and calms the nerves.
• Sternutatory - Promotes sneezing and nasal discharges.
• Vulnerary - Promotes the healing of wounds.

Propagation

Seed - sow early spring in a cold frame[200]. 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[200].

Known Hazards

The whole plant is toxic and should only be used for external applications to unbroken skin[172].

Other Uses

This plant is used as a hair conditioner[172]. No further details are given.

• Hair - Plants used as hair shampoos, tonics, to treat balding etc.

Cultivars

no recorded cultivars

References

Vascular Plants of the Pacific Northwest.
Hitchcock. C. L.
Author: Hitchcock. C. L.
Rating:
Publisher : A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.
Date of Publication : 1955

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