black spruce

Picea mariana | Also known as: Maryland spruce, bog spruce | Rating: 0 votes | Print / Pdf

Go out on a limb and plant a black spruce - its curved branches and colour-changing cones will make it worthwhile.

With its beautiful dark bluish-green foliage, curved branches and elegant conical shape, black spruce or Picea mariana is a breathtaking species that comes in tree and shrub varieties. Black spruce cones have an attractive colour range, initially bluish-black before turning to red and then brown as they mature. Black spruce thrives in full sunlight in fertile, well-draining soils such as loamy or clay soils. This versatile species can accommodate a range of garden ideas. The shrub varieties form excellent additions to borders and rock gardens and tree varieties with their casually graceful appearance make for spectacular screens or windbreaks. Whichever variety is planted, black spruce is a sure way to spruce up any garden.

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Plant
Known dangers?
  • no
Height [m]
  • 10 - 20
Spread [m]
  • 2 - 3
Dominant flower colour
  • Inconspicuous or absent
Flower Fragrance
  • No, neutral please
Foliage in spring
  • Blue-green
Foliage in summer
  • Blue-green
Foliage in Autumn
  • Blue-green
Foliage in winter
  • Blue-green
Propagation methods
  • semi-ripe cuttings
  • grafting
  • seed
Growth habit
  • Conical
  • Dense
  • Rounded
Environment
Acidity
  • Acidic
  • Neutral
Hardiness zone
  • Z2-6
Heat zone
  • H6-1
Winter temperatures [°C]
  • -46 - -18
Heat days
  • 0 - 60
Moisture
  • well-drained
  • well-drained but frequently watered
Soil type
  • sandy
  • Clay
  • loams
Sun requirements
  • Full sun
Exposure
  • Exposed
  • Sheltered
Usage
Standard category
  • Trees & shrubs
  • Conifers
Grown for
  • Ornamental Foliage
Creative category
  • Kid Approved
  • For Beginners
  • Show-offs
  • Bonsai
  • For every season
  • Tough survivors
Garden type
  • Park
  • City
Garden spaces
  • Specimen
  • Architectural
Gardening expertise
  • beginner
Time to reach full size
  • 30 years or longer
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