SelecTree: Tree Detail
Photo Locations: Gazelle, CA, UC Riverside Arboretum - Riverside, CA and Tilden Regional Parks Botanical Garden - Berkeley, CA
Long-lived California native tree. One of the larger Junipers.
Has fragrant Leaf.
Native to Western United States.
A Juniperus grandis in Stanislaus National Forest is registered as a California Big Tree. It measures 78 feet high, with a trunk circumference of 481 inches and a crown spread of 56 feet.
Juniperus occidentalis var. australis
Additional Common Names
WESTERN JUNIPER, SIERRA JUNIPER
Erect or Spreading and requires ample growing space.
Conical or Oval Shape.
Has Evergreen foliage.
Height: 50 - 65 feet.
Growth Rate: 24 Inches per Year.
Longevity Greater than 150 years.
Leaves Scalelike, Dark Green, No Change, Evergreen.
Flowers Inconspicuous. Flowers in Spring. Has separate male and female flowers on the same tree (monoecious).
Black, White or Mostly Blue Cone, Small (0.25 - 0.50 inches), fruiting in Fall or Winter Wildlife use it.
Bark Red Brown, Exfoliating, Furrowed or Scaly.
Shading Capacity Rated as Moderately Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 1 - 24.
Exposure Full Sun to Partial Shade.
Moist to Dry Soil.
Clay, Loam or Sand Texture.
Highly Acidic to Slightly Alkaline Soil pH.
Seaside Tolerance is Medium in Mild Zone.
Pests & Disease Information
Resistant to Texas Root Rot. Susceptible to Beetle Borers and Spider Mites, Armillaria, Root Rot and Rust.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium Strong.
Root Damage Potential Rated as Moderate.
Allergy Health Hazard.
Biogenic Emissions considered Low.
Desirable Wildlife Plant.
Wildlife use Fruit.
Cite this tree:
SelecTree. "Juniperus grandis Tree Record." 1995-2019. Feb 20, 2019.
< https://selectree.calpoly.edu/tree-detail/juniperus-grandis >