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Kosteri Colorado Blue Spruce

Picea pungens 'Kosteri'

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Kosteri Colorado Blue Spruce (Picea pungens 'Kosteri') at Gertens

Kosteri Colorado Blue Spruce

Kosteri Colorado Blue Spruce

(Photo courtesy of NetPS Plant Finder)

Height:  40 feet

Spread:  25 feet

Sunlight:  full sun 

Hardiness Zone:  2b

Other Names:  Blue Colorado Spruce;Colorado Blue Spruce, Kosters

Brand:  Gertens

Description:

A beautiful evergreen tree with silvery blue foliage all season long on a tall and open pyramidal form, retains its color well throughout the season; great for adding some definition to the landscape skyline or as a colorful large accent tree

Ornamental Features

Kosteri Colorado Blue Spruce is primarily valued in the landscape for its distinctively pyramidal habit of growth. It has attractive silvery blue evergreen foliage. The needles are highly ornamental and remain silvery blue throughout the winter. The rough gray bark adds an interesting dimension to the landscape.

Landscape Attributes

Kosteri Colorado Blue Spruce is an 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.

Kosteri Colorado Blue Spruce is recommended for the following landscape applications;

  • Accent
  • Vertical Accent
  • Windbreaks and Shelterbelts

Planting & Growing

Kosteri Colorado Blue Spruce will grow to be about 40 feet tall at maturity, with a spread of 25 feet. It has a low canopy, and should not be planted underneath power lines. It grows at a medium 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. This is a selection of a native North American species.

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