Picea pungens 'Koster' |
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Koster Blue Spruce |
Description
Picea pungens 'Koster' is an evergreen shrub or tree. Slow to moderate growth rate. In gardens, reaches 30'-60' tall, 10'-20' wide. In the wild, can reach 100' tall, 25'-35' across. Very stiff, regular, horizontal branches from a broad pyramid. Foliage is a distinctive blue color.
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Anatomy
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Culture
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Design
Plant Type
Tree, Conifer
Height Range
25-40', 40-60', 60-100'
Flower Color
n/a
Flower Season
n/a
Leaf Color
Blue Green
Bark Color
n/a
Fruit Color
Brown
Fruit Season
Winter, Fall
Sun
Full
Water
Very Low, Low, Medium
Growth Rate
Slow
Soil Type
Sandy, Loam, Rocky, Unparticular
Soil Condition
Average, Rich, Poor, Well-drained, Moist, Dry
Soil pH
Acid, Neutral, Basic
Adverse Factors
n/a
Design Styles
Formal, Ranch
Accenting Features
Specimen, Unusual Foliage
Seasonal Interest
n/a
Location Uses
Background, Lawn, Park
Special Uses
Screen
Attracts Wildlife
n/a
Water Saving Tip:
Apply a 2-3 inch layer of mulch in planting beds to conserve water, suppress weeds, and protect the soil from compaction and erosion.