Macoun's Rockcress

Boechera microphylla

Also known as: Thompson's rockcress, littleleaf rockcress

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Brassicaceae
Genus:
Boechera
Species:
Boechera microphylla

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Subshrub
Height:
1-2 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
apr, may, jun
Bloom Colors:
Purple
Ground Cover:
Yes

Native Range

United States: California, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming, Canada: British Columbia

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:
Commonly found in rocky slopes and open woodlands.

Germination Information

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

Source: OpenAI GPT-4o