Butterfly Mariposa Lily
Calochortus venustus
- Native to:
- United States
Eric in SF





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Liliaceae
- Genus:
- Calochortus
- Species:
- Calochortus venustus
- USDA Symbol:
- CAVE3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Geophyte
- Height:
- 60 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- High
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- white, yellow, red, purple, pink
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees, small mammals
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Bulbs survive fire and may show increased flowering following burns that remove competing vegetation and open canopy.
Soil Requirements
- Soil Type:
- well-drained, sandy or rocky soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to open slopes and meadows
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 14–60 days
- Notes:
- Seeds germinate in fall with cool temperatures and moisture. Plants require summer dormancy as bulbs after spring flowering and are adapted to Mediterranean climate.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Scarify, then cold-moist stratify for 60 days.
Source: Claude AI