Tiburon Mariposa Lily ⚠️ Threatened
Calochortus tiburonensis
- Native to:
- United States
Eric Hunt





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Liliaceae
- Genus:
- Calochortus
- Species:
- Calochortus tiburonensis
- USDA Symbol:
- CATI3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Geophyte
- Height:
- 50 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- yellow, brown, purple
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Benefits from occasional fire to reduce competition and maintain serpentine grassland habitat.
Soil Requirements
- Soil Type:
- rocky, serpentine, well-drained soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to serpentine soils; sensitive to soil composition
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require cold stratification for 2-3 months; sow in fall or early spring.