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Local Arbor Species


APPLE TREES

Crab Apples/Eating Apples
Many varieties cultivated for their small to medium size apples. Used primarily to make preserves and apple jelly. Various clusters of flowers in white, pink and red.

Ornamental Crab Apples
Flowering Crab Apples are desirable for their large blossoms in spring and contrasting foliage of some varieties. These trees produce small, ornamental fruit which stay on the branches through the winter.

 


ASH TREES

Fallgold Black Ash
Tolerates a wide range of soil conditions, fast narrow growing habit. Easily managed tree. 12-15m height/9-11m spread.

Green Ash
Hardy drought tolerant tree, used on the prairies, great shade tree. 15-18m in height/ 10m spread.

Manchurian Ash
Tolerates drought or excess moisture, upright growth pattern with a full dense canopy. 12-15 m height/ 6-7m spread.

Patmore Green Ash
Fast growing and hardy tree for Calgary and surrounding area. Leafs out early and drops leaves later than other Ash varieties. 15-18m height/10-12m spread.

White Ash/Biltmore Ash
Resists heat, grows rapidly and is adaptable to a wide range of soil and climate conditions. The autumn foliage is spectacular and the tree is widely used for shade in parks and large landscapes. The tree is famous for one of its basic wood products, the baseball bat. 30m height.

Ash European Ash Mountain Ash Mountain Ash Ash

ASPENS

Aspen/Trembling Poplar
Bark is smooth at first, greenish-white, becoming rough and dark grey with age, terminal bud is sharp and pointed, all buds are dark brown. Leaf-stems flattened causing fluttering in wind. Widespread throughout Alberta. Up to 30m in height.

Balsam Poplar
Preferring more saturated soils, bark is greenish grey at the top becoming more grey and deeply furrowed at the base; winter buds are large and curved with a sticky balsam-smelling gum. Simple, oval or heart-shaped leaves. Commonly seen on river banks throughout Alberta. These trees can grow up to 25 m high with stout spreading branches.

Swedish Columnar Aspen
Compact, columnar habit, great as an accent tree or privacy screen. Highly recommended for the prairies.

Tower Poplar
Columnar Poplar, fast growing hardy tree. Great as an accent tree these trees can grow up to 15m high with a spread of about 2 m.

Aspen Aspen Aspen


BIRCH TREES

Clump Paper Birch
Bark is ornamental white, peeling with age. Adapts well to most sites, 3 trunks are the usual rule for this type. Must be well watered in the Fall prior to freezing. 12m height/6m spread.

Cut Leaf Weeping Birch
This tree needs a moist site as it is intolerant to drought. Lacy foliage on weeping branches. Brown bark when young, and whitens and peels with age. Must be well watered before Winter freeze. 15m height/6m spread.

Paper Birch
Attractive peeling; light brown and white bark, turns chalk-white with age. Golden Autumn color. Must be well watered in late Fall before Winter freeze. 12m height/6m spread.

White Birch
Whitish or silvery grey bark in thin sheets, long, dark green leaves, requires moist soil, grows along river banks and moist wooded areas throughout central and northern Alberta. 20m height.

Paper Birch Weeping Birch Wild Birch

CARAGANA

Sutherland Caragana
Provides a formal look with its upright form while being very low maintenance. Their branches are lined with a profusion of bright pea-flowers in late Spring. They are very fast growing and make wonderful privacy screens or shelter belts. 5m height/2m spread.

Fern Leaf Caragana
Top grafted, upright with yellow pea-like flowers. Very hardy, drought resistant. Weeping form with small feathery leaflets, that give the plant fern like foliage almost reaching the ground. Bright yellow pea-like flowers in the Spring. Tolerates drought, poor soil and cold. 1m height/ 1.5m spread.

Ross Caragana Caragana Caragana

CHERRY TREES (ornamental)

Amur Cherry (Ornamental)
Fast growing tree with white blossoms, small black fruit in Autumn, bark is polished looking with copper to golden brown color, peeling with age. 6m height/5m spread.

Mayday Cherry
This tree is fast growing, of medium height, low-branched and has a compact, rounded canopy. It is one of the first trees to leaf out and bloom in the Spring. Fruit is nearly black and cherry-like, inedible to humans but birds love it. It can leave stains on concrete. 6m height/8m spread.

Pin Cherry
Requires well drained soil, intolerant of wet. Clusters of small, milky-white flowers in the Spring. Bright red edible fruit in the Fall. Their bark is shiny bronze-red. 5m height/3m spread.

Shubert Choke Cherry
Small tree, the inner bark has a bitter cherry flavour and aroma. Covered in small white clusters of flowers during Spring. Foliage is green in Spring, burgundy-red in summer and deep purple in Fall. Small black fruit can be used for jellies, wine and juice making. Popular tree for birds. Chokecherry is the most widely distributed tree in North America. 8m height/4m spread.

Western Choke Cherry
Generally described as a native tree or shrub with green foliage and white flowers in the Spring. Extremely hardy, looks most attractive in multi-stem form. 5m height/ 3m spread.

Ornamental Cherry Ornamental Cherry Ornamental Cherry

ELM TREES

American Elm
Known for its arched umbrella shaped canopy and deep furrowed bark. Beautiful saw-toothed foliage turning yellow in the Fall. 20m height/ 15m spread.

Brandon Elm
It is a variety of the American Elm, the Brandon has a more even growth habit. Desirable as a shade and boulevard tree. 15m height/6m spread.

Siberian Elm
A very hardy, fast growing tree not frequently planted as an ornamental, the leaves are a little smaller than the American Elm, its crown does not have quite the distinctive shape, but is often favoured where the Dutch Elm disease has decimated the native North American Elms. It has brittle wood which is subject to breakage. Extremely susceptible to insect, disease, and herbicide damage. Siberian Elm grows well in full sun on well-drained soil, drought resistant and keeps leaves until late Fall. 15m height/6m spread.

White Elm

HAWTHORN TREES

Arnold’s Hawthorn
Is a very easily grown deciduous shrub or small tree, low-branched. White flower clusters are followed by attractive bright red non-persistent fruit. 4-9m height.

Black Hawthorn
Likes lots of sunlight to grow to tree size. Tolerates a wide variety of sites.
The apple-like fruit provides food for birds in the Winter. 9m height/3m spread.

Snowbird Hawthorn
Double white flowers; tree is upright/rounded in habit and hardier than its female parent. Leaves are dark green lobed with serrated edges. 4m height/3m spread.

Toba Hawthorn
Small tree that produces an abundance of fragrant double white flowers in the spring which mature to pink. It is a very hardy tree but requires well drained soil. 4m height/3m spread.

Snow Hawthorn Toba Hawthorn Washington Hawthorn Washington Hawthorn

HORSE CHESTNUT TREE

The Horse Chestnut is one of the first trees in leaf, and looks its best in the Spring, when it is covered with clusters of either pink or white flowers, known as 'candles'. These flowers are normally pollinated by the early flying bumble bees. The leaves are made up of 5 to 7 leaflets.

Horse Chestnut Horse Chestnut in Bloom Ruby Red Horse Chestnut

LILAC TREE

Ivory Silk Lilac
This variety forms a pleasant, rounded tree with a stocky branch structure. It blooms heavily, even as a young plant. Pests do not bother the healthy, deep green leaves and the cherry-type bark is attractive all year. 7m height/5m spread.

Japanese Tree Lilac
Medium sized tree with rounded shape. Upright spreading form and single stemmed. Flowers are large creamy white or yellow in large trusses. Blooms late June. 7m height/5m spread.


LINDEN TREES

Dropmore Linden
Upright deciduous tree with dense, compact crown. Hanging clusters of yellowish fragrant blooms. 10m height/ 7m spread.

Greenspire Linden
Oval shaped, dense, fast growing tree. Small flowers in late Spring. Drought and pollution resistant. 10m height/5m spread.

Little Leaf Linden
Medium-sized tree native to Europe, with a strikingly dense pyramid to rounded crown shape. The flowers are highly fragrant and attractive to bees. 12m height/9m spread.

Linden Linden in Bloom Little Leaf Linden

MAPLE TREES

Amur Maple
Is an excellent, low-growing tree for small yards and other small-scale landscapes. Clusters of fragrant, creamy white flowers in Spring and beautiful shades of scarlet in Autumn. 3m height/2m spread.

Manitoba Maple
A smaller tree with compound leaves, needs good amount of water and is susceptible to wind damage due to weak branch crotches. 18m height.

Mayday Tree
The Mayday Tree is of medium height, low-branched and has a compact, rounded canopy. It is one of the first trees to leaf out and bloom in Spring. 6-12m height.

 
Maple Maple Red Maple Mayday  

MOUNTAIN ASH TREES

They are valued for their clusters of small white flowers in Spring and berries in variety of red from late Summer through Winter. Showy Autumn foliage and shiny bronze bark. They are intolerant of wet conditions and should be planted in extremely well drained soil.

American Mountain Ash 10m height/5m spread
European Mountain Ash 8m height/5m spread
Pyramidal Mountain Ash 6m height/2m spread
Russian Mountain Ash 8m height/4m spread
Showy Mountain Ash 6m height/5m spread

 


OAK TREES

Burr Oak
Extremely hardy, leathery leaves and furrowed bark gives this tree wonderful character. The only eastern oak that comes across the prairie. The Oak is not native to Alberta but is frequently planted. Tolerant of automobile exhaust and therefore a good street tree. Acorns 2-2.5 cm long. Beautiful amber color in Autumn. 14m height/6m spread.

White Oak
This tree grows upright and its bark is whitish-grey, an excellent ornamental tree because of its broad round crown, dense foliage and purplish-red to violet-purple Fall color. The life span of an Oak tree, if undisturbed is 500 to 600 years. It can grow to be a large tree with a height of 24-30m.

Oak Oak Oak

OHIO BUCKEY TREE

Small to medium sized tree with creamy upright flower spikes in late Spring. Interesting nuts with spiny shell not for human consumption, it has done well in Alberta and has brilliant reddish-orange Fall foliage.
Height 6-12m.

Ohio Buckey Ohio Buckey Chestnut Ohio Buckey

PEAR TREES

Golden Spice Pear
Tree displays a blanket of radiant white flowers in the Spring. Glossy green foliage turns a splendid orange color in the Fall. The small golden pears are good for canning and preserves. 10m height/6m spread.

Ussurian Pear
The hardiest of all Pear trees, the foliage is semi-glossy, dark green in Summer and reddish-purple or red in the Fall, the small yellow fruit is good for jams etc. Pinkish buds open to white Spring flowers. Hardy to -34.4C. 10m height/6m spread.

Pear Tree Pear Tree In Bloom Pear Tree in Bloom Asian Pear

POPLAR TREES

Not all available Poplars are listed here.

Brooks Poplar #6
Fast growing and very hardy. Recommended for shelterbelts and acreages. Not recommended for urban planting. It is a male clone, therefore is non-cottoning and seedless. 20m height/12m spread.

Bylands Poplar
Simply put and upright growing tree that is disease and insect resistant. 12m height/6m spread.

Griffin Poplar
Upright pyramidal fast growing hardy tree. Excellent for shelterbelts and acreages. 15m height/8m spread.

Cottonless Poplar Hybrid Poplar Lombardy Poplar Tulip Poplar

PLUM TREES

Canada Plum
Is generally described as a perennial tree. The Canadian Plum is easily found in nurseries, garden stores and other plant dealers and distributors. Its flowers are white with red fruits, this is a hardy native tree.
Annual Growth Rate: less than 30 cm.

Brook Red Plum
A late season plum, large red fruit with orange flesh; excellent for eating fresh and for preserving. Pollinate with Opata Plum or Nanking Cherry.
5m height/3m spread.

Pembina Plum
A late season variety; large and dark red fruit with yellow flesh. The finest plum on the prairies for eating fresh. Delicious!! Pollinate with Brook red, Opata or Western Sand Cherry. 5m height/3m spread.

Princess Kay Plum
It is a small ornamental tree with fragrant, white fully double flowers which appear in early May prior to leaf out, the flowers last from 7 to 10 days. Because of the double nature of the flowers, very little fruit is set and the flowers remain a few days longer than those on normal single flowered plants of the species. Princess Kay 'flowers best' in full sun, good drainage is essential. 3-4m height.

Russian Olive Tree
Is an excellent windbreak and wildlife tree, is extremely tolerant of environmental factors. The best windbreak tree for high wind areas. Russian Olive is low in water requirements and displays a high tolerance for salt and alkali. After 3 year planting highly aromatic, creamy yellow flowers appear in June and July and are later replaced by clusters of abundant silvery fruits, silver foliage retained through Winter. Height 7-9m/ 6m spread.

Sea-Buckthorn Tree
Considered a shrub or small tree, they are tolerant of salt in the air and soil, but demand full sunlight for good growth and do not tolerate shady conditions near larger trees. The branches are dense and stiff, and very thorny. The leaves are a distinct pale silvery-green. The female plants produce orange berries with high concentration of vitamin C. Height 0.5-6m.

Russian Olive Russian Olive in Bloom Sea-Buckthorn Sea-Buckthorn Berries

WALNUT TREES

Black Walnut
As a landscape tree, Walnut provides light shade and bright yellow Fall foliage, valued for its wood and for the nuts which it bears. A chemical found in the tree's roots, leaves, trunk and nut husks can inhibit the growth of tomatoes, potatoes, alfalfa, blackberry, domestic grape, Lilac, hydrangea, chrysanthemum, Paper Birch, Red (Norway) Pine, Scotch Pine, Hackberry, Basswood, Apple, and other plants grown too close to a Walnut tree. This effect remains long after a Walnut tree has been removed. It grows best in soil that is deep, fertile and moist but well-drained and does not tolerate shade. Hardy to -34.4C. Height 30m

Manchurian Walnut
Is a deciduous tree. The tree is exceptionally hardy (down to at least -45°C), has a relatively short vegetation period compared to other Walnuts, grows rapidly and is cultivated as an ornamental in colder temperate regions all over the Northern Hemisphere. The kernels of the nuts are edible, but small and difficult to extract. 25m height

Walnut Black Walnut Persian Walnut

WILLOW TREES

Golden Willow
Its round shape is created by slender, drooping branches. Twigs often drop from the tree throughout the season. It has bright green narrow leaves and yellowish-green flowers. Prefers full sun on moist sites and can withstand severe flooding. However, this tree will die back during drought periods. 16m height/12m spread.

Laurel Leaf Willow
A small to medium-sized tree that is often seen in a shrubby form. One of the first to leaf out in Spring and last to drop its leaves in Autumn. Attractive, highly glossy leaves and round crown. A good ornamental tree where moist sites are available. 15m height/15m spread.

Willow Willow Weeping Willow Willow

CONIFEROUS

Any of a large number of cone-bearing trees or shrubs. They are often pyramid-shaped, with leaves that are either scaled or needle-shaped; most are Evergreen. Conifers include Cedar, Pines, Spruces, Firs, Yews, Junipers, Monkey Puzzles, and Larches.


CEDAR

These are Evergreen Trees with a height between 1.5-4m spread. They tend to have stout trunks, short branches and fibrous bark, they grow in a variety of soils from bogs to relatively dry ground. Best examples are those rooted in moist soil that have some drainage. Not all available Cedars are listed here:
Brandon Cedar
Globe Cedar
Siberian Cedar

Cedar Cedar

FIR

Firs are tall, symmetrical Evergreen trees with pyramidal forms and flattish green needles which tend to be soft to the touch. They generally prefer cool, moist soil and cool temperatures. Performing poorly in wet, inadequately drained soils. The strong vertical lines of Firs make them attractive landscaping elements and are best used as specimens with the lower branches un-pruned, sweeping the ground. Some examples of Fir Trees are listed here:
Alpine Fir
Balsam Fir
Douglas Fir
White Fir

Fir Trees at Night Nordmann Fir Douglas Fir

LARCH

Siberian Larch
The Siberian Larch or Russian Larch is a frost-hardy tree native to western Russia. Soft green foliage turns deep yellow in fall. Larch drop needles in the Fall, but retain attractive cones over the Winter. The bark is scaly, resembling that of a Spruce tree, but the inner bark of Larch is a vivid reddish-purple. The Siberian Larch can live up to 100 years with a growth rate of 20 to 150 cm a year. Prefers moist sites. 10m height/4m spread.

Tamarack Larch
A small, slender tree with delicate, deciduous foliage. A unique feature of the Tamarack Larch is its ability to handle extremely cold Winter temperatures. Its second trick is its ability to grow in low, swampy soils near streams and ponds, as well as a wide variety of other soil types. Tamarack Larch are a "deciduous conifer" [as opposed to an "evergreen conifer"], they drop their needles every Fall in mid-October or later and will sport either rich, golden-yellow needles, just a few golden needles, or no needles at all. By early April they will break bud and begin sprouting new green needles, thus returning to their rich and fully green appearance. 15-18m height.

Larch Larch Larch Needles Larch

PINES

Prefer full sun & well drained soil. Not all Pine trees available are listed here.
Columnar Scotch Pine
Dwarf Scotch Pine
Jack Pine
Lodgepole Pine
Mountain Pine
Mugo Pine
Ponderosa Pine
Scots Pine

Western Yellow Pine Red Pine Green Pine Pine Needles

SPRUCE

Spruce require full sun and well drained soil. They are hardy trees. Not all Spruce trees available are listed here.

Black Spruce
Blue Spruce
Colorado Spruce
Columnar Colorado Spruce
Dwarf Alberta Spruce
Fat Albert
Montgomery Spruce
Norway Spruce
White Spruce

Spruce in Winter Blue Spruce Spruce Spruce
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