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Picea pungens 'Koster'

Koster Blue Spruce

Plant photo of: Picea pungens 'Koster'
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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.

 

Plant Type

Tree, Conifer

Height Range

25-40', 40-60', 60-100'

Width Range

6-12', 12-25'

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

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

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:

Dig-up patches of weeds and undesirable grasses from turf areas.

Use water to grow the turf you want, not the weeds you don't want! Once you have eliminated what you don't want, add sod or over-seed to repair the bare areas.