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Picea pungens 'Koster'
Koster Blue Spruce
Information by: J.J. Neilson Arboretum Photographer:
Description
Picea pungens 'Koster' is an evergreen shrub or tree. Slow to moderate growth rate. In gardens, reaches 30-60 ft. tall, 10-20 ft. wide. In the wild, can reach 100 ft. tall, 25-35 ft. across. Very stiff, regular, horizontal branches from a broad pyramid. Foliage is a distinctive blue color.
Sun
Full
Water
Medium
Growth Rate
Slow
Soil Type
Sandy, Clay, Loam, Rocky, Unparticular
Soil Condition
Average, Rich, Poor, Well-drained, Moist, Dry
Soil pH
Acid, Neutral, Basic
Adverse Factors
n/a
Water Saving Tip:
Change spray sprinklers to low-flow bubbler or drip systems.
Shrubs and trees are ideal candidates for this type of irrigation because the water is applied directly to the root zones.