California Butterwort
Pinguicula macroceras
- Native to:
- Aleutian Is., Canada, Japan, Korea, Kuril Is., Russia, United States
Bill Bouton (www.flickr.com) from San Luis Obispo, CA, USA
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Lentibulariaceae
- Genus:
- Pinguicula
- Species:
- Pinguicula macroceras
- USDA Symbol:
- PIMA7
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 15 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul,aug
- Bloom Colors:
- purple, violet
Garden & Ecology Notes
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- moist, nutrient-poor, well-drained soil
- pH:
- 5.0 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- Commonly found in boggy, calcareous environments
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Germination Time:
- 14–60 days
- Notes:
- Seeds require light for germination. Surface sow on moist, nutrient-poor substrate.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: Claude AI