Forever Green
Campaign for Northwest
Directory
A-Z Index
 

Colorado Blue Spruce

Picea pungens 'Glauca'

GIS Coordinate:
N40 20.967 W94 52.873

Trail Number:
G17

View Virtual Map

Description

Family:
Pinaceae

Foliage:
Needles are 1-1.5 inches long, silvery blue and diamond shaped in cross section

Native Locale:
Southwestern United states; Rocky mountains from Colorado to Utah to New Mexico and Wyoming

Mature Height:
30 to 60 feet

Mature Width:
10 to 20 feet

Hardiness Zones:
Zone 3 to 7(8)

Soil Preference:
Prefers rich, moist soil, drought tolerant; very adaptable

Growth Habit:
Dense, regular narrow to broad pyramid with horizontal stiff branches to the ground; often becoming open, poor, and dingy in age

Rate of Growth:
Slow to Medium, 30 to 50' after 35 to 50 years; very stiff and formal in outline

Disease and Insect:
Spruce gall aphid, Adelges cooleyi, spruce budworm and spider mite, Cytosporta canker, Phomopsis occulta

Landscape Value:
n/a

Additional Notes:

  • Overused as a specimen tree in front yards, where it detracts from the rest of the landscape. Species name refers to the sharply pointed needles.

Photos

Leaf - Colorado Blue SpruceSummer - Colorado Blue Spruce