Picea pungens (Colorado Blue Spruce)


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Picea pungens (Colorado Blue Spruce) Seeds

Zones: 2 to 7.

Native to the Rocky mountains of the United States.

With its dense horizontal branches, symmetrical form and attractive silvery to pale blue needles, the Colorado Blue spruce has a well deserved popularity amongst conifers in landscaping, especially on front lawns and parks.  It prefers full sun with moist, well drained soil, but can tolerate a variety of soils. Once established it tolerates wind and can be planted as part of a shelterbelt.

Size: Height 50 to 75 ft; Width 10 to 20 ft.

Germination Instructions

Stratification: The seeds of the Colorado Blue spruce have a shallow dormancy that can be broken with a short stratification period.  Provide about 30 days cold, moist stratification at 3° C (37° F) to 5° C (41° F).

  1. Soak seeds in water for 24 hours.
  2. Place seeds in sandwich bag(s), optionally with a bit of damp sand or vermiculite to keep moist.
  3. Place the bag(s) with seeds in refrigerator for about 30 days.
  4. After the required time take the seeds out of the refrigerator and sow the seeds in pots 1/8 inch deep and cover lightly. Water gently so as not to wash away the seeds. Keep soil moist but not wet.