California Mustard
Streptanthus lasiophyllus
- Native to:
- Mexican Pacific Is., Mexico, United States
Stan Shebs





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Streptanthus
- Species:
- Streptanthus lasiophyllus
- USDA Symbol:
- GULA4
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 80 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- mar,apr,may,jun
- Bloom Colors:
- white, purple
Wildlife Benefits
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Checkered White (Pontia protodice), Desert orangetip (Anthocharis cethura), Large Marble (Euchloe ausonides), Sara Orangetip (Anthocharis sara), Western white (Pontia occidentalis)
Garden & Ecology Notes
- Wildlife Value:
- butterflies
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Annual that may colonize disturbed areas after fire; adapted to California's fire-prone chaparral and grassland habitats.
Soil Requirements
- Soil Type:
- rocky, well-drained sandy loam
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to rocky slopes and ridges
Propagation & Germination
Pre-treatment: None required
Establishment: G. lasiophylla is found on slopes and burns, washes, grasslands and meadows, below 5,000 feet elevation, from Washington to Lower California west of the deserts and the Channel Islands.
Source: npn.rngr.net