Colorado Spruce, Blue Spruce
Piceapungens 'St. Mary's Broom'

Category
Conifers

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun
Sun to Partial Shade

Foliage
Grown for foliage
Evergreen
Provides Winter Interest

Foliage Color
Blue-Green

Height
18-24 in. (45-60 cm)

Spacing
24-36 in. (60-90 cm)

Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)

Where to Grow

Danger
Handling plant may cause skin irritation or allergic reaction

Bloom Color
Inconspicuous/none

Bloom Characteristics

Bloom Size

Bloom Time
N/A

Other details

Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information

Propagation Methods
By grafting

Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed