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Blue Colorado Spruce

Picea pungens 'var. glauca'

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Blue Colorado Spruce (Picea pungens 'var. glauca') at Westwood Gardens

Blue Colorado Spruce

Blue Colorado Spruce

(Photo courtesy of NetPS Plant Finder)

Blue Colorado Spruce (Picea pungens 'var. glauca') at Westwood Gardens

Blue Colorado Spruce foliage

Blue Colorado Spruce foliage

(Photo courtesy of NetPS Plant Finder)

Height:  50 feet

Spread:  20 feet

Sunlight:  full sun 

Hardiness Zone:  2a

Other Names:  Colorado Blue Spruce

Description:

A popular and much-sought-out evergreen accent tree with large stout branches and long, very pointy silvery-blue needles, far more reliable color than the species, a tree of great beauty and color; extremely hardy and rugged, makes an excellent windbreak

Ornamental Features

Blue Colorado Spruce has attractive bluish-green foliage which emerges blue in spring. The needles are highly ornamental and remain bluish-green throughout the winter. Neither the flowers nor the fruit are ornamentally significant. The rough gray bark adds an interesting dimension to the landscape.

Landscape Attributes

Blue Colorado Spruce is a dense evergreen tree with a strong central leader and a distinctive and refined pyramidal form. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

This is a high maintenance tree that will require regular care and upkeep. When pruning is necessary, it is recommended to only trim back the new growth of the current season, other than to remove any dieback. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Blue Colorado Spruce is recommended for the following landscape applications;

  • Accent
  • Vertical Accent
  • Windbreaks and Shelterbelts

Planting & Growing

Blue Colorado Spruce will grow to be about 50 feet tall at maturity, with a spread of 20 feet. It has a low canopy, and should not be planted underneath power lines. It grows at a slow rate, and under ideal conditions can be expected to live for 80 years or more.

This tree should only be grown in full sunlight. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. Consider applying a thick mulch around the root zone in both summer and winter to conserve soil moisture and protect it in exposed locations or colder microclimates. This particular variety is an interspecific hybrid.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Accent  Articulation  Windbreak 
Applications
Foliage Color  Plant Form  Bark  Winter Value 
Ornamental Features