San Diego Wild Cabbage
Streptanthus heterophyllus
- Native to:
- Mexico, United States
Unknown author Unknown author
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Streptanthus
- Species:
- Streptanthus heterophyllus
- USDA Symbol:
- CAHE11
Growth Characteristics
- Life Cycle:
- Annual | Biennial
- Growth Habit:
- Forb/herb
- Height:
- 100 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- apr,may,jun,jul
- Bloom Colors:
- purple, lavender
Wildlife Benefits
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- 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:
- native to chaparral and coastal scrub habitats
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate best with cold stratification; light may improve germination rates.
The above propagation data sourced from Claude AI
Pre-treatment: Seed germination is stimulated by the presence of charred wood or aqueous extracts of it, resulting in a 24% increase in germination as compared to control.
Source: npn.rngr.net