Alpine Rockcress
Arabis alpina
- Native to:
- Albania, Austria, Bulgaria, Canada, Corse, Czechia-Slovakia, DR Congo, East Aegean Is., Eritrea, Ethiopia, Finland, Føroyar, France, Germany, Greenland, Hungary, Iceland, Italy, Kenya, Labrador, Lebanon-Syria, Norway, NW. Balkan Pen., Poland, Romania, Russia, Rwanda, Somalia, Spain, Svalbard, Sweden, Switzerland, Tanzania, Türkiye, Uganda, Ukraine, United States
iNaturalist: © ibdj (iNaturalist #7219572)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Arabis
- Species:
- Arabis alpina
- USDA Symbol:
- ARAL8
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 30 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- may,jun,jul,aug
- Bloom Colors:
- white
- Ground Cover:
- Yes
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:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- thrives in alpine and subalpine regions
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Requires light for germination; sow on surface and do not cover seed. Cool temperatures favor germination.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.
Source: Claude AI
ORGHPS Germination Guide: Sow @ 20°C. Seed germinates within 3 months * grow cool