Landscaping Tips: Facts about the Colorado Blue Spruce Tree

The Colorado blue spruce, whose scientific name is Picea punguns, is a popular evergreen tree used by many homeowners throughout the United States as a landscaping tree. As known simply as the blue spruce, the Colorado blue spruce makes a great windbreak, screen, or border tree on your property because of its large height and width when full grown. Smaller Colorado blue spruce trees are the most desirable Christmas tree variety. If you are considering planting a Colorado blue spruce on your lawn, consider first learning some interesting and useful facts about the blue spruce tree.

Blue Spruce Physical Description

Colorado Blue SpruceColorado Blue Spruce Fast Facts

  • Color: blue-green to silver
  • Height: 30 to 135 feet
  • Width: 10 to 30 feet
  • Shape: pyramid

Colorado blue spruces are a popular evergreen tree with stiff evergreen needles that range in color from blue-green to silver. Seedlings generally grow to about six feet tall in seven to eight years after planting. Full grown blue spruce trees have been known reach heights of ninety to 135 feet tall with widths of twenty to thirty feet. However, most blue spruces planted near homes measure thirty to ninety feet tall and ten to twenty feet wide at maturity.

One of the most appealing physical qualities of the blue spruce is its shape. Colorado blue spruce evergreens have wider branches at the base that taper off towards the top to form a pyramid shape. Its size and shape make the blue spruce an extremely attractive landscaping evergreen. Blue spruces are especially popular in areas with snow during the winter months because the pyramid shape catches snow while still blocking cold winds.

Growing Blue Spruce

Colorado Blue Spruce Growth Facts

  • Zone: 2 to 8
  • Soil: sandy, loam, clay
  • pH: 3.7 to 6.5 (slightly acidic to neutral)
  • Light: partial shade to full sun
  • Moisture: wet, moist, dry
  • Life span: 150 to 600 years

In addition to their physical appearance, Colorado blue spruce evergreens are also extremely popular because of their adaptability to most regions. Although the blue spruce prefers areas with acidic sandy soil and full sun, blue spruces can be grown in almost every state of the United States from the deep south (Zone Eight) to the northern border states (Zones 2 and 3). Blue spruce trees will even grow in the southern areas of Alaska. The Colorado blue spruce will survive the heat of the summer and the cold of the winter, which makes this tree an ideal choice for homeowners in temperate regions.

Because the Colorado blue spruce is native to the Rocky Mountain area, this tree will tolerate poor quality soil and is fairly drought resistance. Blue spruces prefer sun but will tolerate partial shade, at least until the tree towers above surrounding plants and structures. Note that, as with most evergreen varieties, the soil in which a blue spruce grows will become more acidic than neutral, which limits the types of ground-covering plants that will grown beneath these trees. However, certain types of plants do thrive under evergreens like the blue spruce. With the proper care, a blue spruce tree can live beyond 150 years.

The popularity of the Colorado blue spruce is proved by the facts about the blue spruce tree. With its flexibility and durability, a blue spruce makes an excellent addition to almost any landscaping project.


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