Big Western Bittercress

Cardamine occidentalis

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Brassicaceae
Genus:
Cardamine
Species:
Cardamine occidentalis

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
1-2 ft
Light Requirements:
Part Shade
Drought Tolerance:
High
Bloom Months:
mar, apr, may, jun, jul
Bloom Colors:
White, Pink

Native Range

United States: Alaska, California, Oregon, Washington, Canada: British Columbia

Keystone Species Ranking

Caterpillar Keystone:
★★★★★ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)

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

Germination Information

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Source: OpenAI GPT-4o