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Shade Trees & Medium Trees
New! It was named urban tree of the year in 2003! Autumn Blaze is a cross between red and silver maple that tolerates our alkaline conditions. Its standout feature is the wonderful autumn color of orange to red. This tree has excellent branching and strong wood (won't break apart in our wind). Excellent growth rate for this shade tree. Water requirements are similar to a bluegrass lawn. Can be used as a speciman tree or planted in clusters. Available in mid June.
This native of the Black Hills is right at home in the plains and basins of Wyoming! Describing this tree is like describing a warrior. Early in its life it will tend to be pyramidal and as it matures it will develop into a tall tree with a massive trunk and very stout branches. Bark is rough and deeply furrowed. The leaves are a dark green on top, gray-green beneath. Acorns up to 1 inch are enclosed by a heavily fringed cap and prized by wildlife. Withstands drought , wind, extreme cold and heavy soils. Let this warrior be a part of your landscape!
An improved selection of Mountain Ash that for years and years has avoided getting Fireblight when other varieties and species have been lost to this disease! An excellent yard accent with flat white flower clusters in May that become red fruit cluster in autumn and hang on till the birds eat them in winter! The leaves are the classic dark green pinnately compound leaves with silvery undersides. Autumn color is russet red! In winter, you can still enjoy the narrow oval twig and branch form. Avoid tight soils if over-watered!
Height Width Shape Zone Watering Sun 20 to 30 feet 15 to 20 feet Narrow oval 2 Full sun to part shade
This is another Linden worthy of your attention. Like other Lindens, the Greenspire is pyramidal in youth becoming dense and rounded with maturity. In mid summer fragrant yellow flowers appear on 2- 3" cymes. This native of Europe has been in cultivation as early as the Roman Empire. A great boulevard tree and an excellent shade tree for a small yard. Autumn color is yellow. Can be planted as a speciman or in clusters.
Highland Cottonwood
(Populus acuminata x sargentii ‘Highland’) If there was ever one plant that caused us to pause in its introduction it would be the cottonwood, even though the Plains Cottonwood is our state tree! Over the years we’ve found numerous pest issues with cottonwoods and our philosophy has been the introduction of plants without such issues. So, not with trepidation, we offer this cottonwood from the Cheyenne Research Station! This is the only cottonwood we know of that has natural pest resistance! Since it is a hybrid cross, no cottonwood seed filling the air in summer! Expect the same virtues of fast growth associated with Populus genus but with minimal pest issues! This variety has a more upright and narrower canopy than our native Plains Cottonwood. Not picky about soil type – if anything, plant in heavier soils.
 'Jeronimus' Plains Cottonwood (Populus sagentii 'Jeronimus') 
New! This cultivar of our native State tree comes highly recommended by the Wyoming State Forestry for its durability and disease resistance. We all know cottonwoods and the nuisance their seeds cause each June, but this is a male clone that won't produce cottonwood seed. Jeronimus is valued for it's straight growth habit which is atypical of the species. Expect fast growth (over 6 feet of growth a year once established) and tolerance of multiple soils. It will do well in town and the windswept prairie, provided you can supply its water needs. Cottonwoods are found natively along river bottoms where there is ample water. Yellow autumn leaf color.
New! A tad bit smaller than Autumn Blaze Maple but expect an even deeper red autumn color! Like Autumn Blaze, Matador has excellent branching and strong wood. Be the first to grow this tree in Wyoming!
Slender, nodding clusters of single flowers with an almond fragrance appear in spring, producing glossy fruits ripening in summer. Oval, green leaves turn yellow with orange in fall. Branching structure creates a pyramidal to rounded outline.
Height Width Shape Zone Watering Sun 20 to 30 feet 20 to 30 feet Pyramidal Adaptable
 Northern Acclaim Honeylocust (Gleditsia triacanthos var. inermis 'Havre') 
New! This was developed at North Dakota State University and has been shown to be the most winter hardy Honeylocust on the market today! Its appearance is similiar to Skyline. This is a tree for both in town and the windswept prairie. An excellent addition as a filtered shade tree, or a major tree with in a windbreak, or as a boulevard strip tree. Excellent drought tolerance once established. Both Honeylocusts we offer will have growth rates exceeding 5 feet of growth/year.
Height Width Shape Zone Watering Sun 35-45 feet 30-35 feet Rounded 3 Full Sun
Size Cost 10 Gal $150.00
Purple Robe Locust (Robinia pseudoacacia ‘Purple Robe’) Racemes of deep rose-pink pea-like flowers in late spring are the first reason to choose this tree then add the overall tree shape with a wonderfully textured dark-barked trunk and the bluish-green open canopy of pinnate, fernlike foliage. Tolerance of dry alkaline soil is good. Bare root 1 inch is available only in April.
 Redbud - Minnesota Strain
(Cercis canadensis)
New! This is not a tree one would think would do well in Wyoming. We felt the same way until we found a 100 year old gorgeous Redbud doing just fine in Casper. It's now in the treed area of Casper but it wasn't a treed area back then! This handsome, small flat-topped tree is one of the earliest trees to bloom in the spring with long-lasting magenta-pink blossoms on bare stems before leaves appear. Heart shaped leaves change to golden yellow in autumn. This is not a tree for prairie wind swept conditions! But if you have protection from the winds, consider this tree. We guarantee you no one in your neighborhood has one!
Redmond American Linden (Tillia americana ‘Redmond’) This is a linden selection with large, dark green leaves that turn a brilliant yellow in autumn with attractive cherry brown bark that contrasts nicely in the winter landscape. Small yellow flower clusters appear in June, not really noticeable but their incredible sweet fragrance is! An ideal tree for a traditional landscape as its water needs are similar to a Kentucky Bluegrass lawn. Voted 2000 urban tree of the year by the Society of Municipal Arborists.
This one is destined to become one of the great shade trees for Wyoming! This specimen tree does well in difficult soils, limited water and heavy wind. The growth rate is exceptional often putting on 3 feet of new growth/year. The Boxelder is a native to Wyoming, but this one is a seedless male clone, thus it will not attract the Boxelder bugs and has magnificent red-orange autumn color! Make no mistake, this is a go-to shade tree that few have planted. Bare root 1 inch available only in April.
 Skyline Honeylocust
(Gleditsia triacauthos var. inermis 'Skycole') 
New! This is a stately and unusual variety with a distinctive pyramid form (unlike other Honeylocusts that are spreading to rounded). Thornless and essentially fruitless (no pods), this tree develops a sturdy trunk with uniform branching. Its leaves are small, pinately compound green migrating to a golden yellow in autumn. A great shade tree for those who want filtered light to come through.
 State Street Maple (Acer miyabei 'Morton') 
New! This is an outstanding specimen tree for our area. This tree features crisp dark summer foliage that migrates early in autumn to a buttery yellow to golden. It loses its leaves early - a real plus for our early snows that wreck havoc on trees whose leaves stay on longer. This native of Japan was first planted at the Morton Arboretum in Lisle, Illinois in the 1920's. It is from this parent tree we offer the State Street Maple. The literature says it prefers well draining, moist, slightly acidic soils, but our growers have put this maple through heavy clay, alkaline soils and drought conditions and as our Colorado grower reported it performed like it was on steroids! Almost as wide as it is tall, this tree makes a great shade or boulevard tree. Bare root 1 1/4 inch available in April only.
Height Width Shape Zone Watering Sun 35-40 feet 25-35 feet Rounded 4 Full Sun
Size Cost Bare root 1 1/4 inch $75.00 2 inch balled and burlapped $595.00
 Summertime Maackia (Maackia amurensis)
This is a wonderful and extraordinarily hardy tree for all of Wyoming. It's heritage is from the Russian steppe. The City of Casper Arborist introduced this tree to me a couple of years ago and has showed me some ugly soil and wind blown areas he planted it and they looked like champs! Maackia has a similiar appearance to a honeylocust tree, only much smaller in stature. Its compound leaves emerge silvery then turn a dark green, in mid summer the tree produces racemes of cream colored flowers that have a fragrance similiar to a fresh cut lawn! The bark is a mottled olive green to golden which adds to its winter interest. Only a handful of these plants have been planted in Wyoming, be one of the first to do so!
Aspen (Populus Tremuloides)
Native to our mountains, its one of the favorite trees of Wyoming homeowners. Aspen are not without fault, they are considered short-lived, but during their life, enjoy the nearly pure white bark and as the latin name suggests, their leaves tremble at the slightest movement of air. In Autumn expect brilliant golden leaves. Aspens are one of the largest living organisms in the world. Almost always, an aspen grove whether it be just a few scattered trees or tens of thousands, are all clones! You do not need to buy a clump of aspens to get a grove started they will naturally sucker creating that grove affect.
An outstanding Wyoming native, considered a small tree or large shrub, with five-lobed dark green leaves turning shades of yellow, orange, or red in the fall. Our seed source for these trees come from the sunny dry slopes of the Hoback in Teton County! Ecologists believe that this maple and the Sugar Maple of the N.E. US are essentially the same tree but developed separately as the ice ages came and went. This maple has not been in the trade until recently, be the first to grow this specimen tree! Tolerates drought and poor soils.
Hot Wings Tartarian Maple (Acer tataricum ‘GarAnn’) Plant Select® 2007 Consistent, breath-taking scarlet red samaras (seeds) appear in summer giving the tree the appearance of being in bloom! Outstanding autumn color as the leaf color migrates from orange-red on the outside to yellow in the middle of the tree. Tolerates a wide range of soils and is drought tolerant to boot! One of our growers developed this tree and has since patented it. Be the first to grow this specimen tree!
Slender, nodding clusters of single flowers with an almond fragrance appear in spring producing glossy fruits ripening in summer. Oval, green leaves turn yellow with orange in fall. Branching structure creates a pyramidal to rounded outline.
Oak Leaf Mountain Ash (Sorbus hybrida) This cross of European and Swedish Mountain Ash is longer lived than the native species and has been thriving on decades of inattention at the Cheyenne Horticultural Field Station. Grey-green lobed oak-shaped leaves provide yellow fall color. Flat white flower clusters are showy in late spring and the resulting red berry clusters persist through winter unless waxwings or other birds come for a feast. Fireblight resistance is good. Plant in our typically alkaline soil but not in the most exposed site and never in a water-logged site.
New! Make no mistake this is not a form of European White Birch that is getting hammered by the insect pest the Bronze Birch Borer. It has natural resistance to these bad guys, but what sets this birch a part is it's beauty. Expect classic white birch bark with foilage that is burgundy red throughout the growing season - very visually contrasting! This birch is well adapted to Kentucky Bluegrass lawns with their frequent irrigations and not for wind-swept prairie conditions. It will perform the best with shade in the hottest part of the day.
Height Width Shape Zone Watering Sun 25-35 feet 15-20 feet 4 Full Sun to Part Shade
Size Cost 10 Gal $150.00
A unique shrub/tree that is found in the plateau country of the southern Rocky Mountains. A true xeric plant that has thick leathery, blue-green leaves that have wavy margins- a real conversation piece! Our oak friends tell us that there are seven ancestors in this natural hybrid. The Cheyenne Experiment Station has one that is doing very well after some 70 years. This one is a character of the windswept west—it decides which way it will grow, upright like a tree or outward like a shrub! These oaks have become such pets for their people that each gets named when planted!
A standout western native with wonderfully fragrant, orchid like white flowers borne in 4—8 inch panicles which appear in late June followed by 12—18 inch long thin seed pods! Its narrow canopy with large light green heart shaped leaves makes this a perfect choice for those of you who want a tall tree in limited space. The first ones in Casper were planted in the 1920’s but are rarely sold in the trade, today. We introduced a few last year at our lot to gauge customer acceptance—and once they smelled the fragrance of this tree we knew we had a winner!
Height Width Shape Zone Watering Sun 35 to 45 feet 25 to 30 feet Narrow irregular 4 Full Sun
Size Cost 20 Gal $210.00 25 Gal $225.00
Western River Birch (Betula occidentalis) A beautiful native with glossy, burgundy bark dotted with white lenticels! Found along the lower parts of mountain streams, this is one of the most gorgeous native trees in Wyoming! This Birch is the only one we recommend—it has built in insect resistance. Multi-stemmed and grown as an accent or under story tree along streams or near downspouts and watered lawns. Click Here to watch a VIDEO about Western River Birch.
Rain Gauge Throughout this site, the following are used as guidelines for watering established plants:
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Autumn Blaze Maple (Acer x freemannii) 
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Cardinal Royal Mountain Ash (Sorbus aucuparia ‘Michred’)
Corinthian Linden (Tilia cordota 'Corzam')
Greenspire Linden (Tilla cordata 'Greenspire') 
Matador Maple (Acer x freemanii 'First Editions Matador') 
May Day Tree 
Sensation Boxelder (Acer negundo)
Bigtooth Maple (Acer granidentatum)
Royal Frost Birch (Betula x 'Royal Frost') 
Wavy Leaf Oak (Quercus undulata)
Western Catalpa (Catalpa speciosa)
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