Rockcress
Arabidopsis lyrata subsp. petraea
- Native to:
- Austria, Canada, Czechia-Slovakia, Finland, Føroyar, Germany, Hungary, Iceland, Ireland, Italy, Kuril Is., Norway, Poland, Romania, Russia, Sweden, Ukraine
GBIF: wiedehopfen
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Arabidopsis
- Species:
- Arabidopsis lyrata subsp. petraea
- USDA Symbol:
- CAPE47
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 30 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- apr,may,jun,jul
- Bloom Colors:
- white, pale purple
Garden & Ecology Notes
- Wildlife Value:
- small pollinators
- Deer Resistant:
- Yes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 7–21 days
- Notes:
- Seeds require light for germination. Surface sow on moist substrate after cold stratification.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: Claude AI