SelecTree: Tree Detail
COLORADO BLUE SPRUCE
Picea pungens 'Glauca'
Photo Locations: Lotusland - Santa Barbara, CA, Finch Arboretum - Spokane, WA and Strybing Arboretum - San Francisco, CA
Commonly seen blue-gray leaf form.
Erect or Spreading and requires ample growing space.
Has Evergreen foliage.
Height: 30 - 65 feet.
Width: 10 - 20 feet.
Growth Rate: 24 Inches per Year.
Longevity Greater than 150 years.
Leaves Needle, Bluish Green or Silver or Gray Green, No Change, Evergreen.
Flowers in Spring. Has separate male and female reproductive parts on the same tree (monoecious).
Brown Cone, Very Large (Over 3.00 inches), fruiting in Fall or Winter.
Bark Dark Gray or Light Gray, Fissured.
Shading Capacity Rated as Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 1 - 10 and 14 - 17.
USDA Hardiness Zones 3 - 8.
Exposure Full Sun to Partial Shade.
Clay, Loam or Sand Texture.
Highly Acidic to Highly Alkaline Soil pH.
Seaside Tolerance is Good in Mild Zone.
Pests & Disease Information
Susceptible to Aphids, Scales and Spider Mites, Armillaria, Phytophthora, Root Rot, Rust and Sooty Mold.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Moderate.
Allergy Health Hazard.
Fire Resistance is Unfavorable.
Desirable Wildlife Plant.
Not Deer Palatable.
Cite this tree:
SelecTree. "Picea pungens 'Glauca' Tree Record." 1995-2020. Aug 14, 2020.
< https://selectree.calpoly.edu/tree-detail/picea-pungens-glauca >
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