Western Poppy
Papaver crassifolium
- Native to:
- Mexico, United States
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Papaveraceae
- Genus:
- Papaver
- Species:
- Papaver crassifolium
- USDA Symbol:
- PACA9
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 30 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- yellow, orange
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to rocky, coastal areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination; sow on surface and do not cover.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds were dry stored for an unspecified period of time in which the embryo afterripened prior to germination. Seed germination is stimulated by the presence of charred wood or aqueous extracts of it.
Establishment: P. californicum is found within mattoral vegetation association of California. No conflicting information found in the protocol.
Source: npn.rngr.net