Big Western Bittercress
Cardamine occidentalis
- Native to:
- Canada, United States
iNaturalist: © pdunwiddie (iNaturalist #160003870)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Cardamine
- Species:
- Cardamine occidentalis
- USDA Symbol:
- CAOC
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 40 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- white
Keystone Species Ranking
- Caterpillar Keystone:
- ★☆☆☆☆ Butterfly & moth species supported by this genus (NWF)
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- good drainage required
- Moisture:
- consistently moist
- Notes:
- Commonly found in moist woodland areas
Propagation & Germination
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: Claude AI