Plant Data Sheet for Arnica latifolia, Mountain arnica
Species
Arnica latifolia, Mountain arnica
Range
Alaska California Colorado
Climate, elevation
Mid to high elevation
Local occurrence (where,
how common)
See habitat preferences
for where
Habitat preferences
Open forest sub-alpine
meadows; Grand fir and Western red cedar forests at
mid elevation in mountains; full sun with intermediate shade tolerance;
precipitation requirements 14-40 inches/year
Plant strategy type/successional
stage (stress-tolerator, competitor, weedy/colonizer, seral, late successional)
?
Associated species
?
May
be collected as: (seed, layered, divisions, etc.)
seeds, sprigs
Collection restrictions or
guidelines
Flowers May through
August
Seed germination (needs
dormancy breaking?)
No need for
stratification unless trying to sow in the spring instead of the fall
Seed life (can be stored,
short shelf-life, long shelf-life)
?
Recommended seed storage
conditions
?
Propagation recommendations
(plant seeds, vegetative parts, cuttings, etc.)
seed or root division in spring
Soil
or medium requirements (inoculum necessary?)
Well drained humus-rich
acid soil; adapted to coarse textured soils
Installation form (form,
potential for successful outcomes, cost)
seed or container
Recommended planting
density
7-11 thousand per acre
(5-6 lbs.)
Care requirements after
installed (water weekly, water once etc.)
?
Normal rate of growth or
spread; lifespan
Slow spread
Sources cited
http://plants.usda.gov/cgi_bin/plant_attribute.cgi?symbol=ARLA8
http://earthnotes.tripod.com/arnica.htm
Pojar, Mackinnon. Plants of the
Data compiled by
Maddi Schweitzer on