California Laurel
Umbellularia californica
- Native to:
- Mexico, United States
Walter Siegmund (en.wikipedia.org)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Lauraceae
- Genus:
- Umbellularia
- Species:
- Umbellularia californica
- USDA Symbol:
- UMCA
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 2500 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- mar,apr,may
- Bloom Colors:
- yellow, green
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Caloptilia sp. n., Cameraria umbellulariae, Sabulodes caberata, Western amorbia moth (Amorbia cuneanum)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Deer Resistant:
- Yes
- Fragrant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from the root crown after fire or cutting. Top-killed trees regenerate readily.
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- Thrives in coastal and riparian zones
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 30–180 days
- Notes:
- Germination is slow and erratic; fresh seed germinates best. Seeds may take several months to sprout.
The above propagation data sourced from Claude AI
Pre-treatment: Stratify seeds for 3 to 4 months in refrigerator
Source: npn.rngr.net