Howell's Pioneer Rockcress
Boechera platysperma
Also known as: pioneer rockcress
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Boechera
- Species:
- Boechera platysperma
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 1-2 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- jun, jul, aug
- Bloom Colors:
- White, Purple
- Ground Cover:
- Yes
Native Range
United States: California, Idaho, Nevada, Oregon
Host Plant for Caterpillars
Sara Orangetip (Anthocharis sara), Western white (Pontia occidentalis)
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 6.0 - 8.0 (neutral to slightly alkaline)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to arid regions, often found in rocky or gravelly soils
Germination Information
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: OpenAI GPT-4o