Snow Arnica
Arnica griscomii subsp. frigida
- Native to:
- Canada, Russia, United States
GBIF: bpagacz
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Arnica
- Species:
- Arnica griscomii subsp. frigida
- USDA Symbol:
- ARFR2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 30 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- yellow
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- rocky, well-drained, nutrient-poor soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers alpine and subalpine environments
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–42 days
- Notes:
- Requires light for germination; surface sow seeds. Cold stratification improves germination rates significantly.
The above propagation data sourced from Claude AI
Pre-treatment: Approximately 5 months of cold moist stratification. In Alaska, seed is sown in the Fall and overwintered where it is exposed to outside ambient temperatures.
Source: npn.rngr.net