Foliage is attractive, although if located in a spot exposed to spring winds, can become shredded and look poor all summer long. Bushy, irregularly shaped, pine with dark green needles dotted with white pitch. *J. Klett, Colorado State University Extension landscape and horticulture specialist; B. Fahey, Jefferson County Extension natural resources/horticulture agent; R. Cox, Arapahoe County Extension horticulture agent., retired, and I. Shonle, Gilpin County Extension Director/Agent. This tree is one of the first to leaf out in the spring. It has a great resistance to the Dutch Elm Disease. Good small tree with distinctive characteristics. spreading, multi-stemmed evergreen with small. Fall color is orange to red and very striking. Never grows very wide. An attractive Hawthorn with silvery bark that contrast nicely with dark green, glossy leaves. Skyrocket® provides a uniformly narrow shape, excellent for street plantings. Long needles with open branches. Fast growing oval headed tree that spreads with maturity. White 1-1 ½” flowers bloom in clusters in early May generally will not appear until tree is older. Its gnarled habit gives the tree an interesting silhouette. If a site has a non-native landscape that This delightful plant produces purple blooms that add plenty of texture to the garden. Will tolerate dry alkaline soils and thrives on neglect. ASH, PRAIRIE SPIRE SEEDLESS (Fraxinus pennsylvanica ‘Rugby’)Ht 45 ft, Spd 20 ft. Full sun to part shade, low to moderate water needs. requires additional inputs (such as an irrigated landscape on the plains), dry land native plants can be used in non-irrigated pockets within the non-native landscape. 1” yellow to red fruit ripens in August and can be used for jams or jellies. Pyramidal form with strong, sturdy trunk. The needles are stiff blue-green 1½”-3” long, and contrast nicely with the gray to reddish-brown cones. Attacks and pressures from drought, pests, diseases, and floods make only the healthiest and hardiest trees survive. Tolerates both dry conditions and alkaline soils. Pyramidal to oval in its youth, gradually maturing into a broad crowned tree with a massive trunk and very stout branches. LILAC TREE, IVORY SILK (Strubga reticulate ‘Ivory Silk’) Ht 20-25 ft, Spd 15-20 ft. Tolerates full sun, low to moderate water needs. HONEYLOCUST, IMPERIAL SEEDLESS (Gleditsia triacanthos inermis ‘Impcole’) Ht 30-35 ft, Spd 20-35 ft. Full sun to part shade, low water needs (xeric). Irregularly rounded honeylocust clone which is seedless and thornless. MOUNTAIN ASH, NATIVE (Sorbus scopulina) Ht 15-20 ft, Spd 18-20 ft. Full sun, low to moderate water needs. Double pink flowers. Our physical location is 1311 College Ave, Fort Collins, CO. Having website issues? Fall leaf color migrates from orange-red on the outside of the plant to yellow in the middle of the plant. Has well spaced branches on erect growing trunk. Light green foliage turns red in fall. The Colorado State tree. Showy, fragrant double white flowers appear in May before the leaves, followed by 1¼” red fruit ripening in August. Smooth glossy sienna-brown bark on younger stems. Excellent resistance to fire blight should make this a tree worth considering for those who desire purple leafed accent plants. PINE, SCOTCH (Pinus sylvestris) Ht 60-100 ft, Spd 30-40 ft. Full sun, low to moderate water. Fruit is persistent. It has upright growth habit that becomes more oval with age. May sprout to form groves (multi-stemmed). Prefers well-drained soils, or plant higher in heavier soils. Landscaping with natives on a large or small scale can maintain biodiversity that otherwise could be lost to development. All of these crops can handle minus 25 degrees F winter temperatures, with the exception of peaches … Foliage emerges a bright gold and fades to lime green as it matures making this a distinctly different tree. CSU’s crabapple trials indicate that this crab has good fire blight resistance. CSU Extension - A division of the Office of Engagement. Disease resistance is not as good as some other crabs, but no others are fruitless. Oval shape with good central leader. Can sometimes broaden with age. Rabbits and deer seldom eat it. Strong branching resists ice and snow breakage. Great for smaller yards where space is limited but a shade tree is needed. Fall color is russet to red. Colorado State University Extension Service suggests fruit trees suited to Colorado’s climate. Native to much of our area, pinon is a dense, slow grower-about six inches a year is normal. The pink blossoms are followed by ½” dark red fruit. The Blue Spruce reaches heights of 25-98 feet. Russian Hawthorn ( Crataegus ambigua ) Although not native to our area, this 2011 CSU Plant Select variety grows very well in Colorado, even at higher elevations of 7,500 feet or more. MOUNTAIN ASH, CARDINAL ROYAL (Sorbus aucuparia ‘Michred’ (pp3114)) Ht 20-30 ft, Spd 15-20 ft. Full sun to part shade, low to moderate water needs. We found it 15 years ago and every plant we ever made from it remained sucker free…Thus it was named Sucker Punch. May sucker. Will have a yellowish fall color. Pruning is seldom needed. KENTUCKY COFFEE TREE (Gymnocladus dioica) Ht 50-60 ft, Spd 40-50 ft. Full Sun, low water needs (xeric). Medium-sized red fruit ripens in late summer. Golden yellow fall color. Yellow fall color. Double flowers emerge in spring as a scarlet color fading as they age. Withstands drought, wind, extreme cold, alkaline soils, and heavy soils: an excellent tree for Colorado. A small black drupe fruit ripens late summer and is usually eaten by the birds. “Colorado is not the easiest place to have a garden or a landscape or grow anything,” Harris says. Better in windy locations than the Japanese Tree Lilac. Small tree or large shrub, with five-lobed dark green leaves turning shades of yellow, orange or red in the fall. The flowers look similar to an orchid blossom. Glossy medium green leaves are intermediate in size between Plains Cottonwood and Narrowleaf Cottonwood. They are also known as Rocky Mountain or Alpine Fir. USDA Colorado Hardiness Zone Map For Trees And Plants. Blue-gray foliage on vertically growing branches that create a columnar form. Dark green foliage with yellow fall color. Many people assume that because Colorado is a high altitude environment, fruit trees don't grow well in the state. CHOKECHERRY, SCHUBERT (Prunus virginiana ‘Shubert’ ) Ht 20-25 ft, Spd 18-20 ft. Low to moderate water needs, full to part sun, very adaptable. White flowers. PEAR, MOUNTAIN FROST (Pyrus ussuriensis ‘Bailfrost’)Ht 20-30 ft, Spd 15-20 ft. Full sun to part shade, low to moderate water needs. Shiny red fruits mature in late summer and persist into winter if they are not eaten by the birds. Every Hoopsi is that color. The quaking Aspen trees are generally medium in size with an average height of 30 feet (9 meters). An exciting and beautiful red leafed Chokecherry which doesn’t sucker. light green needles, persistent cones; tall. In order to maximize survival with minimal external inputs, trees should be selected to match the site’s life Can be grown as a multi-stem or a single stem small tree. Disclaimer | The pink flower buds are different then other serviceberry varieties. Russian Sage. HAWTHORN, RUSSIAN (Crataegus ambigua) Ht 15-25 ft, Spd 20-25 ft. Full sun to part shade, low water needs (xeric). Englemann spruce is found in Colorado’s Rockies, growing at high elevation, up to 12,000 feet near the alpine tree line. This is especially true of Colorado cannabis home growers who must pay attention not only to the weather but all of their surroundings, as well. Tolerant of poor soils and dry conditions. A plus for this tree is it’s good to excellent disease resistance for all enemies of the crabapple family: scab, fire blight, rust, and mildew. The dark bark with its prominent lenticels provides good winter interest. ELM, VALLEY FORGE (Ulmus americana ‘Valley Forge’) Ht 60 ft, Spd 40 ft. Tolerates full sun, low to moderate water needs. This juniper is very durable in heat, cold, salt and drought. The trees listed in Table 1 are grown by some Colorado nurseries and are becoming more available in the commercial sector. The Paul Scarlet Hawthorn matures into an upright, spreading, oval tree. The leaves on this tree emerge a bright green color turning to a deep reddish- purple color in the summer and fall. Turkish filbert* (Corylus colurna) Tolerant of a wide variety of soil conditions, dark green leaves turn yellow in fall, may produce small nuts in fall. SPRUCE, BAKERI (Picea pungens ‘Bakeri’) Ht 20 ft, Spd 12 ft. Full sun or part shade, low to moderate water needs. ‘Radiant’ has a compact rounded form. A slow-growing pine with dense, dark green foliage and light gray bark. CRAB, THUNDERCHILD (Malus ‘Thunderchild’) Ht 15-20 ft, Spd 15-20 ft. Full sun to part shade, moderate water needs. Colorado native trees are naturally adapted to their specific Colorado climate, soil, and environmental conditions. OAK, ENGLISH (Quercus robur) Ht 50-60 ft, Spd 35-45 ft. Tolerates full sun, low to moderate water needs. Rose red flowers. The maroon ½” fruits are persistent. Pyramidal form with strong, sturdy trunk. PEAR, BURGUNDY USSARIAN (Pyrus ussuriensis ‘Burgundy’) Ht 20-25 ft, Spd 15-25 ft. Full sun, low to moderate water needs. Young cones are bright blue. It has great resistance to Dutch Elm Disease. Seitz is Colorado’s state soil. Red fruit persists into winter. Trees are by far the largest and most numerous large living organisms in … The reddish-orange bark of mature trees and sparse foliage have their own charm. Pyramid habit when young maturing to a rounded crown. SERVICEBERRY, AUTUMN BRILLIANCE (Amelanchier x grandiflora ‘Autumn Brilliance’)Ht 15-20 ft, Spd 10-15 ft. Full sun to part shade, low to moderate water needs. The narrow, willow-like leaves are light green in summer turning golden yellow in fall. Rounded growth habit with moderately spreading branches. Moderately pyramidal when young maturing to a rounded crown. SPRUCE, BLUE TOTEM (Picea pungens Fastiglata Wells ‘Blue Totem’) Ht 12-15 ft, Spd 2-3 ft. Full sun to part shade, moderate water needs. “MANZANITA COLORADO. Full sun to part shade, moderate water need. Revised 1/18. Colorado’s Major Tree Species Colorado’s major tree species include bristlecone pine, Colorado blue spruce, Douglas-fir, Engelmann spruce, limber pine, lodgepole pine, narrowleaf cottonwood, quaking aspen, piñon pine, plains cottonwood, ponderosa pine, Rocky Mountain juniper, subalpine fir and white fir. Lovely purplish leaves and red flowers. The leaves turn red in the fall. Large white flowers appear in the spring and are followed by leathery dark green leaves. Green foliage in the summer turns and outstanding gold/red in the fall. Remarkable clusters of crimson flowers with a white star in the center are surrounded by glossy green leaves. It produces sparse ¾” fruit, if pollinated, in the late summer. Native tree with upright rounded crown. White flower. OAK, SKYROCKET (Quercus robur ‘Fastigiate’) Ht 45 ft, Spd: 15 ft. Full sun, low to moderate water needs. Rated highly for disease resistance. Can grow over a wide range in the Western US. MAPLE, ROCKY MOUNTAIN (Acer glabrum) Ht 10-15 ft, Spd 8-10 ft. Full sun to part shade, low to moderate water needs. Foliage is light green. Fall color is scarlet red and can be spectacular with the leaves holding on into winter. Denser and more compact than Newport Plum. These trees tolerate heavy snow, and do well in windy locations. Strong branch development stands up well in snow. Bark is flaky brown developing into rugged handsome old trunks. The light green foliage turns yellow in the fall. Thornless and podless. It is dominated by grasslands and streamside cottonwoods. Fast growing shade tree for extremely harsh sites. ‘Spring Snow’ is characterized by a perfect teardrop shaped head that stands full and erect without pruning when young, and matures to a rounded form. Successful establishment of native trees may require supplemental moisture after planting. SPRUCE, FAT ALBERT (Picea pungens ‘Fat Albert’) Ht 30-40 ft, Spd 20-25 ft. Full sun to part shade, low to moderate water needs. The leaves have a beautiful orange, red, and gold color in the fall. The bark is silvery grey especially as a young plant. The leaves are smaller, thicker, and deep green. PINE, VANDERWOLF’S (Pinus flexilis ‘Vanderwolfs Pyramid’) Ht 20-25 ft, Spd 10-15 ft. Full sun to part shade, low to moderate water needs. Beautiful pink flowers. Moderate water needs, full sun to part shade. Tell us (or take a picture and show us!) Creamy white flowers borne in 2-3” wide corymbs in May are followed by showy clusters of brilliant red fruit. Most Colorado gardeners and homeowners want to harvest a fruit nut or berry crop as soon as possible so that the apparent choice is to plant a large vine or tree or to set out a fast growing … SPRUCE, BABY BLUE EYES (Picea pungens ‘Baby Blue Eyes’) Ht 18 ft, Spd 8 ft. Full sun to part shade, moderate water needs. Dense branching creates a full pyramidal form in the mature tree, but young trees grow so fast they are often more “open” than Colorado spruce. It’s on the larger size, usually growing to around 100 feet, though it has been found in places to be over 200 feet tall. MAPLE, CELEBRATION (Acer x fremanii ‘Celebration’ ) Ht 40-50 ft, Spd: 25-35 ft. Tolerates full sun, low to moderate water needs. There is a great variation in size within the species. The dark green summer leaves turn to clear yellow in the fall. In order to realize these benefits, the planting site must approximate the natural environmental conditions of the plant in its native habitat. The bark is creamy white and cork-like. A comparable tree to the Colorado Blue Spruce in shape and color. Leaves turn to a bronze color in the fall. CSU A-Z Search Suffers from many diseases wherever it grows. We do not sell hand dug Ponderosa. CISTENA, PRUNUS TREE FORM/MULI-STEM (Prunus x cistena) Ht 8 ft, Spd 6 ft. Full sun to part shade, low to moderate water needs. The bark is gray and becomes more furrowed with age, the uniform branches add a nice red color to the tree for winter interest. ELM, NEW HARMONY (Ulmus americana ‘New Harmony’) Ht 60 ft, Spd 35-40 ft. Tolerates full sun, low to moderate water needs. Black Friday 11am-5pm MAPLE, PARKWAY NORWAY (Acer platanoides ‘Columnarbroad’) Ht 40 ft, Spd 25 ft. Full sun, low to moderate water needs. Branchlets are stout. Bright red fruit follows its deep pink flowers to 1/5”, which develops color in midsummer and is not persistent. OAK, NORTHERN PIN (Quercus ellipsoidalis)Ht 50-70 ft, Spd 30-40 ft. Full sun to part shade, low to moderate water needs. PEAR, REDSPIRE (Pyrus calleryana ‘Redspire’)Ht 35-45 ft, Spd 20-30 ft. Full sun to part shade, moderate water needs. A symmetrical, compact variety of thornless, seedless, honeylocust. All payment transactions will take place outside, on the east side of our office at the 4 check out stations, the checkout line starts on the south side of our office. OAK, BUR (Quercus macrocarpa) Ht 50-60 ft, Spd 35-45 ft. Full sun to part shade, low water needs (xeric). Good sour cherry varieties include Montmorency, Early Richmond, Hansen bush cherry, Nanking, Meteor and Montmore. This pine has a straight, well-branched pyramid form in youth becoming irregular and picturesque with age. Large greenish yellow flowers appear in spring followed by prickly seedpods. Yellow fall color. CLOSED Saturday & Sunday, View the list of our trees below, or search our trees, Perennials, Groundcovers, & Ornamental Grass Guide. It has glossy green leaves through the summer turning to a yellow color in the fall. This would be a great selection for a small patio tree. Ponderosa and Austrian growing side by side will look the same more often than not. Pinnately-compounded leaves are blue-green in summer. HAWTHORN, THORNLESS COCKSPUR (Crataegus crusgalli inermis) Ht 20-30 ft, Spd 20-25 ft. Full sun to part shade, low water needs (xeric) Small, graceful tree with dark green, glossy foliage. We have 3 regions; Peaks and Plains, Front Range and Western. Landscaping with natives on a large or small scale can maintain biodiversity that otherwise would be lost to development. LINDEN, AMERICAN SENTRY (Tilia americana ‘American Sentry’) Ht 40-45 ft, Spd 25-30 ft. Full to part sun, moderate water needs. The Alpine zone above 11,500 feet is a treeless zone made up of grasslands called tundra. The Discovery Elm is a round form shade tree with finely textured leaves. ©2020, Colorado State University Extension, Fort Collins, Colorado 80523 USA. The fall color is a bright burgundy-red. LINDEN, GLENLEVEN (Tila cordata ‘Glenleven’) Ht 45 ft, Spd 30 ft. Full sun to part sun, low to moderate water needs. Will have a similar form to the American Elm. Small tree or large shrub, native to the southern Rocky Mountains. Excellent for seasonal change. Due to Colorado’s variation of elevation and topography, native plants are found in many habitats. The good news is that this is a much hardier selections than some other pears, it is fire blight resistant, the small fruit is tasty, and it is grafted for increased tolerance to alkaline soils. The Oak Leaf Mountain ash is named after its dark green leaves that are lobed much like an oak leaf. They appear in 8”-12” upright panicles. A softer textured plant that offers a change from the much planted Colorado Spruce. This is the narrowest of the Linden cultivars. Good resistance to fire blight, but can develop chlorosis in alkaline soil. A fast growing tree native to our area. Deer resistant. Coniferous trees, like the blue spruce, bear seeds; this means that you will have saplings growing in random areas that you will need to remove occasionally. As with other xeric plants, ponderosa should be planted above grade if in a sprinkled lawn area. Colorado can be divided into five life zones that are broadly defined by the plant communities that occur at the approximate elevations described below. ASH, AUTUMN PURPLE SEEDLESS (Fraxinus Americana ‘Autumn Purple’) Ht 40-60 ft, Spd 30-40 ft. Tolerates full sun, low to moderate water needs. The bark color is an attractive reddish-orange and shows itself to advantage on the well-developed strong branches. Dense, upright, and narrowly pyramidal in mature form. Can produce pods which persist throughout winter. They decorate the branches like ornaments for 2-3 weeks and are great for attracting birds. Selecting the right trees and shrubs is important. The buds open to white flowers in the spring followed by sweet blue-black fruit. This tree comes from a very hardy northern plains seed source. A small, uniform growing globe usually grafted to a 3’ standard. Upright oval habit. So before completing a landscape design, check with local authorities, including homeowner’s  associations, to discover any regulations that may affect your design. The light green foliage turns yellow in the fall. small tree or large shrub; bronze-red bark; multi-stemmed tree with small, scale-like leaves. Since its introduction by Schmidt in 1989, this selection has proven to stay tighter in form than the typical fastigiate English Oak. HAWTHORN, CRIMSON CLOUD (Crataegus laevigata ‘Crimson Cloud’) Ht 15-18 ft, Spd 13-15 ft. Full sun to part shade, moderate water needs. A Linden selection with an upright narrow growth habit and uniform branching. It requires very little water once established, and it doesn’t need any pruning or maintenance. HONEYLOCUST, TRUESHADE/SHADEMASTER SEEDLESS (Gleditsia triacanthos inermis ‘Trueshade’) Ht 45-50 ft, Spd 35-45 ft. Full sun to part shade, low water needs (xeric). MAPLE, DEBORAH NORWAY (Acer platanoides ‘Deborah’) Ht 40-45 ft, Spd 40 ft. Full sun, moderate water needs. CSU Extension programs are available to all without discrimination. Container-grown trees can be planted at any time during the growing season. White flowers cover this tree in the spring and are followed by dense clusters of fruit. We have seen these growing beautifully up to 9000 ft. elevation in natural and man-made plantings. If you are high risk please take advantage of our Pre-Thanksgiving Christmas Tree hours or slower times that are usually Monday-Thursday from 9am to 3pm.  Our peak hours are usually afternoon/evening and on weekends.  We look forward to serving our wonderful customers and kicking off a beautiful Christmas Season! Many of these varieties can handle weather up to -25 degrees Fahrenheit as long as they are planted in a protected area (near the home).

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