“Sometimes called the gambel … HONEYLOCUST, SUNBURST (Gleditsia triacanthos inermis ‘Suncole’) Ht 30-35 ft, Spd 30-35 ft. Tolerates full sun, low to moderate water needs. A very hardy and adaptable tree for small areas. Apply to CSU | Foliage emerges a bright gold and fades to lime green as it matures making this a distinctly different tree. Produces beautiful upright panicles of fragrant, cream white flowers in early to mid-June. A vigorous and attractive small specimen tree. Species requiring medium to high moisture occur along watercourses throughout all zones. Very adaptable to varying soil conditions and tolerates clay soils. OAK, REGAL PRINCE (Quercus robur x bicolor)Ht 40-50 ft, Spd 18-20 ft. Full sun to part shade, low to moderate water needs. The branches and trunk become “muscled” with age adding character to older specimens. light green needles, persistent cones; tall. Will have a similar form to the American Elm. Straight growing tree with medium green leaves turning bright yellow in fall. In order to maximize survival with minimal external inputs, trees should be selected to match the site’s life A dense, stoutly-pyramidal pine with a uniform crown becoming more open with age. Similar to its big brother Austrian Pine in everyway except in size. Its gnarled habit gives the tree an interesting silhouette. A small upright plum with dark brown, to almost black bark. Drought tolerant, and it must have good drainage. JUNIPER, BLUE POINT (Juniperus chinensis ‘Blue Point’) Ht 8 ft, Spd 4 ft. Full sun, low water needs (xeric). Dense foliage is dark green in summer. Quickly grows 35 to 45 feet high and 20 feet wide, with upright-spreading, thornless branches. This is a beautiful small native tree with glossy, cherry-brown bark dotted with white lenticels. Has the same glossy dark red-brown bark to cinnamon-brown exfoliating bark. Very showy, bright silver-blue color. ©2020, Colorado State University Extension, Fort Collins, Colorado 80523 USA. Beautiful pink flowers. Bark is a smooth light gray on older wood and dark gray to black on smaller stems. Excellent fastigate form for tight spaces or to make a strong vertical impact. PEAR, MOUNTAIN FROST (Pyrus ussuriensis ‘Bailfrost’)Ht 20-30 ft, Spd 15-20 ft. Full sun to part shade, low to moderate water needs. MAPLE, AUTUMN BLAZE (Acer x fremanii ‘Jeffersred’) Ht 40-50 ft, Spd 30-40 ft. Full sun to part shade, low to moderate water needs. This pine has a straight, well-branched pyramid form in youth becoming irregular and picturesque with age. Nearly as broad as tall and forms a broad, open, round topped crown. Hardy tree with excellent disease resistance. Outstanding, profuse bloomer with dark rose-pink, fragrant flowers covering the tree in late springs/ early summer. Should always be planted above grade, and slightly higher in lawn areas where it will thrive if this practice is observed. Seedless male clone that does not attract the boxelder bug. Dense forests of Subalpine fir and Engelmann spruce dominate the subalpine zone at 9,500 to 11,500 feet. Branchlets are stout. FIR, CORKBARK(Abies lasiocarpa arizonica) Ht 50-90 ft, Spd 15 ft. Full sun to part shade, low to moderate water needs. An excellent, hardy, and unusual tree for streets, or wherever a good specimen tree is needed. Small, rounded tree with slender horizontal branches. It has many cultivars that are grown for Christmas trees and ornamental trees. COTTONWOOD, SANTA FE COTTONLESS (Populus simonii) Ht 35 ft, Spd 25 ft. Full sun to part shade, low to moderate water needs. CATALPA, WESTERN (Catalpa speciosa) Ht 50-60 ft, Spd 30-40 ft. Part shade to full sun, low to moderate water needs. Native trees should not be collected from the wild because this reduces the biodiversity and causes a disturbed area that may be invaded by weeds. The tree produces a small green non-showy flower in the spring before the leaves emerge. HONEYLOCUST, SKYLINE SEEDLESS (Gleditsia triacanthos inermis ‘Skycole’) Ht 45-50 ft, Spd 35-40 ft. Full sun to part shade, low water needs (xeric). Similarly, a Colorado blue spruce should not be planted on a south-facing slope, where a significant amount of additional moisture would be required. Emerald Ash Borer (EAB) is a hot topic in the Colorado nursery industry since it was discoverd in Boulder in 2013. Key factors to consider are tree hardiness, the length of time of cold dormancy, growing season length requirements, and disease susceptibility. Native Rocky Mountain oak with a shrubby growth habit but may also grow as a small tree to 30 ft. Glossy green leaves turn a golden yellow to an occasional orange or red in fall. There are several factors to consider when designing a native landscape. A broad oval tree when mature with dark glossy green foliage turning radiant yellow in the fall. OAK, WAVYLEAF (Quercus undulata) Ht 10-20 ft, Spd 10-15 ft. Full sun, low water needs (xeric). The reddish-orange bark of mature trees and sparse foliage have their own charm. Once established, the watering frequency can be reduced or eliminated, if the plant was sited in its native environmental conditions. Moderate water needs, full to part sun. Broad, oval head shape, branching better than Silver Maple. JUNIPER, WOODWARD (Juniperus scopulorum ‘Woodward’) Ht 12-20 ft, Spd 2-4 ft. Full sun, low water needs (xeric). Blue-gray foliage on vertically growing branches that create a columnar form. Sharp, stiff needles give rise to its botanical name of pungens(sharp-pointed). Oblong lobed leaves are 5-8” in length, deep green above, whitish and velvety beneath. Native plant communities make Colorado visually distinct from the eastern, southern, or western United States. 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. ‘The totem’, is blue, and is columnar, and it’s a great accent tree. It is not particular to soil type or PH which is important for success in our climate. OAK, NORTHERN RED (Quercus rubra) Ht 50-70 ft, Spd 30-40 ft. Full sun to part shade, low to moderate water needs. Specimens have been observed to 50’. Young trees have a cone shaped crown, while older ones are more like a cylinder. Bright green, pinnately compound foliage turns slightly yellow in fall. Abundant ½”- 3/4” thorns are attractive. The flowers look similar to an orchid blossom. The tree has an oval upright growth habit, that is great for areas where a narrow tree is needed. Upright spreading form with green foliage and golden yellow bark. CLOSED Saturday & Sunday, View the list of our trees below, or search our trees, Perennials, Groundcovers, & Ornamental Grass Guide. Double flowers emerge in spring as a scarlet color fading as they age. The New Harmony Elm has a broad V-shaped growth habit. Dark green leaves turn a clear yellow for fall. This devastating insect has killed millions of ash trees in other states. Red fruit is persistent. Sunday Noon-5pm, WHOLESALE HOURS The ovate leaves are green in the late spring and summer and turn to stunning red to orange in the fall. Large conical evergreen with 1½”-2½” long, soft bluish-green needles, brightened in spring by very blue new growth. ASH, SINGLELEAF (Fraxinus anomala) Ht 10-18 ft, Spd 10-15 ft. Full sun, low water needs (xeric). A Colorado native tree can be described as existing in Colorado prior to European settlement. Dense, upright, and narrowly pyramidal in mature form. Can be grown as a multi-stem or a single stem small tree. New growth is bright green, turning to burgundy-red as the leaves mature. Bright red fruit follows its deep pink flowers to 1/5”, which develops color in midsummer and is not persistent. 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. Leaves are deeply lobed and medium green in summer. Tree and shrub planting can be challenging in Colorado. It does prefer acid soils, but there are older specimens along the Front Range making this a tree worth a try! Monday-Friday 9:00am to 4:30pm Prefers well drained soils, and will tolerate dry conditions. HAWTHORN, CRIMSON CLOUD (Crataegus laevigata ‘Crimson Cloud’) Ht 15-18 ft, Spd 13-15 ft. Full sun to part shade, moderate water needs. ‘Radiant’ has a compact rounded form. A small, dense tree or large shrub, native to the higher elevations of the Rocky Mountains. The light green foliage turns yellow in the fall. Acorns ¾” to 1½” are enclosed by a heavily fringed cap. Russet-orange to apricot fall color. Slightly more narrow than most ash. Fire blight resistant. Bright green, pinnately compound foliage turns gold in the fall. Red flowers. New foliage has a reddish tint turning to dark green during the summer. Tell us (or take a picture and show us!) COTTONWOOD, NOR’EASTER COTTONLESS (Populus x canadensis ‘Noreaster’) Ht 50-75 ft, Spd 40-45 ft. Full sun to part shade, moderate water needs. Due to Colorado’s variation of elevation and topography, native plants are found in many habitats. PEAR, CHANTICLEER/CLEVELAND SELECT (Pyrus calleryana ‘Cleveland Select’)Ht 30-35 ft, Spd 12-15 ft. Full sun to part shade, moderate water needs. The summer foliage is medium to dark green with a fall color ranging from yellow to bronze red. Aside from its’ dark green foliage and RED fall color the key to this tree is as mentioned ADAPTABLE. Branches are uniformly spaced. The bark is silvery grey especially as a young plant. Produces a tan samara fruit in late summer to fall. The maroon ½” fruits are persistent. 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 foliage and shrub-like habit is typical of the species, but it will usually grow to a larger size. CSU Horticulture Agents and Specialists Blog, Capric Acid: A Promising Next-Generation Herbicide for Organic Specialty Crop Production, Columnar and Fastigiate Trees for CO Landscapes, Management-intensive Grazing (MiG) on Irrigated Pasture, Pulse Crops and their Key Role as Staple Foods in Healthful Eating Patterns, Integrated Hive Management for Colorado Beekeepers, Management-intensive Grazing (MiG) and Soil Health. PINE, AUSTRIAN DWARF (Pinus nigra ‘nana’) Ht 15 ft, Spd 10 ft. Full sun to part shade, low water needs (xeric). Fast growing oak with a broad-spreading, open crown. The pink flower buds are different then other serviceberry varieties. GOLDEN RAIN TREE (Koelreuteria paniculata) Ht 30-40 ft, Spd 30-40 ft. Full sun, low to moderate water needs. This is also available in a shrub form. Also check my one-page "Instant Tree Finder," a one-page guide to the conifers. Pyramidal form with strong, sturdy trunk. They turn red to orange in fall putting on an attractive display. MAPLE, STATE STREET™ (Acer mivabei ‘Morton’) Ht 30-40 ft, Spd 20-30 ft. Tolerates full sun, low to moderate water needs. A small shrubby tree lilac similar to Japanese Tree Lilac, but with smaller leaves that suffer less tatter. Conical as a young tree maturing to a broad oval. Native tree of the Rocky Mountains. Small tree or large shrub, native to the southern Rocky Mountains. Tolerant of alkaline soils. The smallest tree on the list is a Japanese Tree Lilac. The tree has a wide spreading growth habit and is able to tolerate variable sites. Tolerant of poor soils and dry conditions. Imperial is more compact and uniform than other honeylocusts and works well in smaller landscapes or as a street tree. COTTONWOOD, HIGHLAND COTTONLESS (Populus acu. Thornless and podless. Controlled growth with improved branching structure. An upright growing disease and pest resistant cottonwood well suited to sites with limited space. Excellent resistance to fire blight. Can be planted between windows and wine boxes. Burr Oak. Showy creamy white flowers are borne in 4-6” long upright panicles in early June. large shrub or small tree, often multi-stemmed; Western water birch, Rocky Mountain birch. This crabapple is noted for its abundant single pink flowers. Tolerates both dry conditions and alkaline soils. In addition to being self-fertile, North Star and English Morello are double-duty trees because they flower late and pollinate cherry trees that need a partner, according to Alan Buckingham in his book, “Grow Fruit.” Older stems develop an interesting corky bark. CSU A-Z Search Tolerates dry soils very well. Glossy dark green foliage changes to yellow in the fall. Thornless and podless. Some say “very desirable” others say “hard to digest”. Well, just about any deciduous fruit trees can be grown in Colorado (apples, pears, apricots, sweet and tart cherries, peaches, nectarines and plums). The bark is creamy white and cork-like. Fragrant flowers of pale pink emerge all along branches in spring followed by striking maroon red foliage. 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. and bark, so the planting site should be amended with some organic material. Pinnately-compounded leaves are blue-green in summer. This seems like a great tree to try, so look for more of these in the years to come. A Colorado native. Light green foliage turns red in fall. The leaves on this tree emerge a bright green color turning to a deep reddish- purple color in the summer and fall. green to blue-green needles in bundles of 4-5; longer, yellow-green needles; bark becomes, blue-green needles, large cones, scaly bark. Most of the trees in the spruce forests of Colorado are Engelmann rather than blue spruce. Prefers well drained soils. Denser and more compact than Newport Plum. CHOKECHERRY, SCHUBERT (Prunus virginiana ‘Shubert’ ) Ht 20-25 ft, Spd 18-20 ft. Low to moderate water needs, full to part sun, very adaptable. These are true lilacs, but their globe shape is much taller than the ... Russian Hawthorn. 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 flowers appear in late April to early May and are white with red centers. Suffers from many diseases wherever it grows. There are many benefits to using Colorado native trees for home and commercial landscapes. Young cones are bright blue. CRAB, INDIAN SUMMER (Malus ‘Indian Summer’) Ht 15-20 ft, Spd 15-20 ft. Full sun to part shade, moderate water needs. The bark color is an attractive reddish-orange and shows itself to advantage on the well-developed strong branches. OAK, SHUMARD (Quercus shumardii) Ht 50 ft, Spd 40 ft. Tolerates full sun to part shade, low to moderate water needs. Tolerates a wide range of soil conditions. CRAB, INDIAN MAGIC (Malus ‘Indian Magic’) Ht 15 ft, Spd 15 ft. Full sun to part shade, low to moderate water needs. Moderately pyramidal when young maturing to a rounded crown. Our unique soil and environmental conditions can be difficult to understand, and oftentimes requires the advice of a professional. Moderate water needs, full sun to part shade. Noted for its moderate size, ability to regenerate quickly, and neatness of habit. Creamy white flowers in spring, dense summer foliage turns glowing red-orange in fall. This mixture of organic matter and clay loam is found covering 350,000 acres. 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. Ponderosa and Austrian growing side by side will look the same more often than not. Fast growing and hardy. White flowers born in clusters in early May, usually won’t appear until tree is older (3-4” in caliper). Tolerates dry soils. Large white flowers appear in the spring and are followed by leathery dark green leaves. The fruit is edible and attracts wildlife. Native plant gardens are wildlife habitats and each plant contributes to the biodiversity of the state. A comparable tree to the Colorado Blue Spruce in shape and color. Clusters of showy white flowers appear in April, followed by a tasty, purplish-black, blueberry-like fruit. The leaves are deep green above and light blue-green beneath, and have a brownish fall color. A dwarf crabapple with horizontal branching, becoming more broad than tall. The young English Oak will start out in a pyramidal form, but mature as a large, massive, round-topped tree. Broad pyramidal form. We are producing more of these. Deer resistant. Above is the map of the USDA Colorado hardiness zones. Arching limbs and a graceful vase shape characterize this outstanding hybrid. Fall leaf color migrates from orange-red on the outside of the plant to yellow in the middle of the plant. fast-growing, upright, rounded, dense branching; fast-growing; soft, medium to dark green needles; native to southwest, with occurrences in Montezuma. It is usually grown as a multi-stemmed tree. The trees listed in Table 1 are grown by some Colorado nurseries and are becoming more available in the commercial sector. SPRUCE, COLORADO (Picea pungens) Ht 50-80 ft, Spd 25-35 ft. Full sun to part shade, moderate water needs. MOUNTAIN ASH, NATIVE (Sorbus scopulina) Ht 15-20 ft, Spd 18-20 ft. Full sun, low to moderate water needs. They become susceptible to rot as they age which may cause the tree to fall apart. Fast growing. More open and faster growing then some other Linden. Colorado Springs possesses a unique climate, and that can make for a challenge when looking for trees that will thrive in your landscape. Fragrant, yellow flower clusters in June to July. LILAC TREE, JAPANESE (Syringa reticulata) Ht 20-30 ft, Spd 15-20 ft. Full sun, low to moderate water needs. Will do well over 8000’ elevation. The bark is a smooth light grey. The fall color is a bright burgundy-red. It grows at a moderate rate, is very adaptable, and will grow in average to wet soil conditions. Another option would be to carefully wash off the media from the container grown plant and plant it bare root. Fall color is orange to red and very striking. Requires ample room for growth. PINE, PIÑON (Pinus edulis) Ht 15-30 ft, Spd 15-20 ft. Tolerates full sun, low water needs (xeric). Fragrant white flower panicles up to 12” long, bloom on female trees followed by mahogany colored seed pods that persist through winter. This tree can tolerate moist soil conditions. Red fruit persists into winter. The following maples are more adaptable to Colorado. PINE, AUSTRIAN (Pinus nigra) Ht 50-60 ft, Spd 20-40 ft. Full sun to part shade, low water needs (xeric). Landscaping with natives on a large or small scale can maintain biodiversity that otherwise could be lost to development. A beautiful tree. COTTONWOOD, LANCELEAF COTTONLESS (Populus x acuminate) Ht 40-60 ft, Spd 35-50 ft. Full sun, moderate water needs. White flowers. The Corkbark can grow as tall as 100’. The narrow, willow-like leaves are light green in summer turning golden yellow in fall. Fast growing native cottonwood with ascending branches that form a pyramidal crown. “The tree that gets planted and dies in a year — that’s not good for anyone.” Japanese Tree Lilac. Just about any of the deciduous fruit trees, such as apples, pears, apricots, sweet and tart cherries, peaches, nectarines, and plums can be grown in Colorado. SERVICEBERRY, SHADBLOW (Amelanchier canadensis) Ht 6-20+ ft, Spd 8-12 ft. Full sun to part shade, low water needs (xeric). ‘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. This is a hybrid maple that grows into an excellent pyramid-oval form. We have 3 regions; Peaks and Plains, Front Range and Western. Transplants readily. Can grow over a wide range in the Western US. Ideal for narrow area. Purple, reddish-orange fall color. Very hardy. 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