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.
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