About

Colorado Spruce ‘Koster’

The Colorado spruce, or Picea pungens ‘Koster,’ is a well-known cultivar of the Colorado blue spruce tree. This evergreen conifer is admired for its striking silvery-blue to blue-green needles that provide year-round colour and visual appeal to landscapes.
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The Appearance

A large evergreen conifer with a pyramidal shape and striking blue needles. It produces small, cylindrical cones.


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The Produce

The cones of Picea pungens 'Koster' are small to medium-sized, typically measuring around 2 to 3 inches (5 to 7.5 cm) in length. The cones have a cylindrical shape with slightly curved scales.


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The Flowers

Produces small, reddish flowers in spring, followed by cylindrical cones.


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The Leaves

The Picea pungens ‘Koster’ is characterised by its needle-like leaves, which are typically 1 to 1.5 inches (2.5 to 3.8 cm) in length. The needles are stiff and sharp, arranged in spirals around the branches.


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The Bark

The bark is gray and scaly, becoming more fissured with age.


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The Habitat

Prefers well-drained soils and full sun. Commonly found in gardens and parks.


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The Ecology

Provides habitat and food for various wildlife, including birds and mammals. The dense foliage offers excellent cover.


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The Culture

Valued for its ornamental blue foliage and timber. Often planted in gardens and large landscapes.


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Fun Facts

Colorado Spruce ‘Koster’ is known for its striking blue needles, which add color to landscapes year-round.

The Connection To Burton Constable

bchp info coming soon