SelecTree: Tree Detail
Photo Locations: East Cuesta Ridge, San Luis Obispo, CA and UC Berkeley Botanic Garden - Berkeley, CA
Very drought tolerant. Variable growth habit.
Native to Southern Oregon and Northern California.
A Pinus attenuata in Shasta County is registered as a California Big Tree. It measures 117 feet high, with a trunk circumference of 135 inches and a crown spread of 66 feet.
Erect or Spreading and requires ample growing space.
Oval or Rounded Shape.
Has Evergreen foliage.
Height: 60 - 80 feet.
Width: 20 - 25 feet.
Growth Rate: 36 Inches per Year.
Longevity 50 to 150 years.
Leaves Needle, Gray Green or Light Green, No Change, Evergreen.
Flowers Inconspicuous. Flowers in Spring or Summer. Has separate male and female flowers on the same tree (monoecious).
Brown Cone, Very Large (Over 3.00 inches), fruiting in Fall or Winter.
Bark Dark Brown or Purple, Fissured.
Shading Capacity Rated as Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 2 - 10 and 14 - 21.
USDA Hardiness Zones 7 - 8.
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 Good in Mild Zone.
Pests & Disease Information
Resistant to Verticillium. Susceptible to Aphids and Beetle Borers, Armillaria and Pitch Canker.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium Weak to Medium
Root Damage Potential Rated as Moderate.
Allergy Health Hazard.
Biogenic Emissions considered Moderate.
Attracts Birds and Squirrels.
Not Deer Palatable.
Cite this tree:
SelecTree. "Pinus attenuata Tree Record." 1995-2018. May 25, 2018.
< https://selectree.calpoly.edu/tree-detail/pinus-attenuata >