SelecTree: Tree Detail
Photo Locations: BioPark Botanic Garden - Albuquerque, NM, The Morton Arboretum - Lisle, IL, Regional Parks Botanic Garden, Tilden Regional Park - Berkeley, CA, The National Arboretum - Washington, DC and Arnold Arboretum - Boston, MA
Native to Western United States.
Erect or Weeping with a High Canopy.
Has Evergreen foliage.
Height: 30 - 50 feet.
Width: 15 - 35 feet.
Growth Rate: 12 Inches per Year.
Longevity Greater than 150 years.
Leaves Needle, Dark Green, No Change, Evergreen.
Flowers Inconspicuous. Flowers in Spring. Has separate male and female flowers on the same tree (monoecious).
Beige or Orange Cone, Very Large (Over 3.00 inches), fruiting in Fall or Winter.
Bark Black or Dark Brown, Fissured.
Shading Capacity Rated as Moderate in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 1 - 11 and 14 - 21.
USDA Hardiness Zones 3 - 7.
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 Verticillium. Susceptible to Aphids, Armillaria, Root Rot and White Pine Blister Rust.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Moderate.
Allergy Health Hazard.
Biogenic Emissions considered Moderate.
Attracts Birds and Squirrels.
Not Deer Palatable.
Special Uses & Values
Bonsai or Hedged.
Cite this tree:
SelecTree. "Pinus flexilis Tree Record." 1995-2018. May 20, 2018.
< https://selectree.calpoly.edu/tree-detail/pinus-flexilis >
SelecTree Nursery Connection Map
Cal Poly / ESRI