The Austrian Pine is a fast growing pyramidal evergreen with wide spreading branches. It is 'Christmas Tree' shaped when young, but at maturity, sometimes achieves a picturesque flat topped head. Its 4-6 inch long needles are uniquely shiny green.
This is an extremely hearty tree that will tolerate limestone or acidic soils, dry rocky locations and windy conditions. A number of Austrian Pines were planted during the dust bowl because they are one of the only varieties that could handle the dry, windy conditions and nutrient depleted soil—needless to say, this baby is tough.
This tree is great for urban settings due to its tolerance for salt and pollution. Austrian pines are also good for use as thick screens or windbreak. (To use as a screen, space 6 feet apart.) These trees do really well in Colorado and grow to be roughly 35-45 feet tall by 25-35 feet wide.
Hardy to -30°F Maximum Elevation: 7,000 ft.
Colorado Blue Spruce
Picea pungens var. Glacier Blue
The Colorado Blue Spruce is the iconic tree of Christmas. This tree is native to the Rocky Mountain states of the US, so needless to say, it thrives in Colorado. These trees grow to be 30-60 feet tall with a narrower width than other conifers—only growing 10-20 feet wide. he unique blue/green/silver color of the tree makes it stand out year round, especially in the winter.
The Colorado Blue Spruce makes for both a great landscaping tree, privacy screen, or wind break if several are planted in a row. It is cold hardy, drought tolerant, and low maintenance, requiring little more than planting it and watching it grow (no pruning required). It can be planted in either full sun or partial sun. The growth rate ranges from 10 to 18 inches per year which is fast for a conifer. Birds, rabbits, and other small animals love the shelter it provides, but you don’t have to worry about them (or deer, for that matter) nibbling on the tree. This tree also grows perfectly shaped pinecones.
Hardy to -40°F Maximum Elevation: 9,000 Feet.
Concolor Fir (White Fir)
The Concolor Fir (White Fir) tree lives over 100 years and naturally occurs at an elevation between 2,950-11,200 ft. It is native to the mountains slopes of the western United States including the Cascade, Sierra, and Rocky Mountains. This tree is best grown in rich, medium moisture, slightly acidic, sandy/gravelly, well-drained soils in full sun to partial shade. (Best in full sun.) Established trees tolerate some soil dryness, but best performance usually comes with moist soils. The Concolor produces lightly barrel-shaped cones (to 3-6” long) that are most often yellowish-green, maturing to brown or purple. As is distinctive with the firs, the cones appear upright on the branches. This tree may not produce cones and seeds for up to the first 40 years. Its bark is ash-gray and smooth, but will furrow with age. The word Concolor means "all one color" and thus, you can expect a beautiful bluish green color year round with this tree.
This is a popular tree for use as ornamental landscaping and as a Christmas tree. This is a durable tree for the Colorado Front Range and has no serious insect or disease problems. This tree does not do well with urban pollution—so it's not recommended along busy streets or in areas with poor air quality. This tree grows in an elegant pyramidal shape with a symmetrical outline. The height and width can vary depending on soil and site, with mature height ranging between 40-60 feet tall and 20-30 feet wide.
Hardy to -40°F Maximum Elevation: 10,000 ft.
Explore our curated collection of the best evergreen trees for Denver metro.