Native: southwestern Oregon, California Coast Ranges, lower elevations of the Sierra Nevada
General Notes:
An Umbellularia californica in Mendocino County is registered as a California Big Tree. It measures 108 feet high, with a trunk circumference of 536 inches and a crown spread of 119 feet.
Tree Characteristics
- Shape: Irregular (varies depending on where it is grown)
- Foliage: Lance shaped, medium to deep yellow-green, glossy
- Height: 20-25 ft
- Width: 20-25 ft
- Flowers: Shiny, yellow, flowers in spring
- Fruit: olive-like, purplish, fruit.
- Shading Capacity: Very Dense
- Litter Issue: wet Fruit
Tree Site Condition & Constraints
- Zones: Sunset 4-9, 14-24, USDA Hardiness 7 - 9
- Exposure: Sun or Shade
Pests & Disease Information
- Resistant: Verticillium.
- Susceptible: Beetle Borers, Leaf Miner, Cottony Cushion Scale and Beetle Leaves, Sudden Oak Death, Anthracnose, White Mottled Rot and Sooty Mold.
Health, Safety & Environmental Concerns
- Branch Strength: Strong.
- Root Damage Potential: Moderate.
- Health Hazard: Allergy
- Biogenic Emissions: Moderate.
Sources:
SelecTree. "Umbellularia californica Tree Record." 1995-2018. Feb 23, 2018. < https://selectree.calpoly.edu/tree-detail/umbellularia-californica >
The Editors of Sunset (2012) The New Sunset Western Garden Book New York, New York: Sunset Books Inc
Updated: June 20, 2023