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Quick Reference Guide Common Name Zone Growth Rate Elm, Prairie Expedition 2 Hackberry, Northern 3 MF Linden, American 3 Oak, Bur 3 S Box Elder, Sensation 4 F Honeylocust, Northern Acclaim 3 F Linden, Harvest Gold 2 Hawthorn, 'Toba' 3 Maackia, Amur 3 Plum, Princess Kay 2 Maackia amurensis Blooms late summer, ornamental seed pods and bark offers winter interest. Prunus nigra ‘Princess Kay’ Very cold hardy, fruitless. Tilia mongolica ‘Harvest Gold’ Yellow fall color, exfoliating red bark. Small Trees 15 ft. to 25 ft. Require 20 feet spacing between trees and 4 ft. + planting strip Crataegus x mordenensis ‘Toba’ Medium Trees 25 ft. to 40 ft. Require 30 feet spacing between trees and 5 to 7 ft. planting strip Acer negundo ‘Sensation’ Male, improved branch structure from species Gleditsia triacanthos var. inermis ‘Harve’ Similar to ‘Skyline’ but more winter hardy mID=852 Celtis occidentalis Nipple gall makes leaves unattractive but is harmless to tree. Very tolerant of wind and cold. Tilia Americana Pyramidal shape Quercus macrocarpa Ph adaptable, more tolerant of city conditions than most oaks. Boulevard trees for City of Kalispell Large Trees 40 ft. and up Requires 40 feet spacing between trees and 7 ft. + planting strip Botanical Name Notes Ulmus Americana ‘Lewis & Clark’ Originated from North Dakota, adapted to cold prairie conditions, Dutch Elm Disease resitant. ---PAGE BREAK--- Tree Lilac, 'Ivory Silk' 4 Common Name Zone Growth Rate Catalpa, Northern 4 MF Elm, Accolade 4 Elm, Triumph 4 Elm, Vangaurd 3 Elm, Prairie Expedition 2 Elm, New Horizon 4 Ginkgo (male) 3-4 M Hackberry, Northern 3 Honeylocust, ‘Skyline’ or ‘Shademaster’ 4 Horschestnut, ‘Baumannii’ 3 Kentucky Coffeetree 3 Gymnocladus dioicus Upright arching branches with bipinate leaves that cast filtered shade, no serious pest problems Celtis occidentalis Nipple gall makes leaves unattractive but is harmless to tree. Very tolerant of wind and cold. Gleditsia triacanthos var. inermis ‘Skyline’ or ‘Shademaster’ Good urban tree but has been overplanted. Aesculus hippocastanum ‘Baumannii’ Similar to Ohio Buckeye but larger, nuts are poisonous. Double white flower Ulmus Americana ‘Lewis & Clark’ Originated from North Dakota, adapted to cold prairie conditions, Dutch Elm Disease resitant. Ulmus Americana ‘New Horizon’ very high resistance to Dutch elm disease, elm leaf miner, and verticillium wilt, However, it has proven susceptible to attack by elm leaf beetle. Ginkgo biloba Select male varieties Ulmus ‘Morton’ Resistance to Dutch Elm Disease and elm leaf beetle, urban and drought tolerant. Resembles American Elm. Ulmus ‘Morton Glossy’ Cross between Vangaurd and Accolade Elm. Ulmus ‘Plainsman’ Cross between Japanese and Siberian Elm, Dutch Elm Disease and elm leaf beetle resistant, drought tolerant. Boulevard trees for City of Kalispell Large Trees 40 ft. and up Requires 40 feet spacing between trees and 7 ft. + planting strip Botanical Name Notes Catalpa speciosa 8” to 12” long bean-like fruit capsules persist on tree through winter. Syringa reticulata ‘Ivory Silk’ ---PAGE BREAK--- Linden, American 3 Oak, Bur 3 Oak, Swamp White 4 Oak, Northern Pin 3 Oak, Red Oak 4 F Planetree, American 'Northern Advance' 3 Siberian Larch 2 Turkish Filbert 5 Common Name Zone Growth Rate Alder, Black or Common 3 Amur Corktree 4 Birch, Dakota Pinnacle Asian White 3 Birch, Paper 'Prairie Dream' 2 Birch, River 'Heritage' 4 Birch, White 'Parkland Pillar Asian' 3 Birch, White 'Prairie Vision Asian' 3 Box Elder, Sensation 4 F Cherry, Emerald Charm 3 Cherry, Sargent 4 F Acer negundo ‘Sensation’ Male, improved branch structure from species Prunus x ‘Morgenson’ Good alternative to crabapples having superior foliage Prunus sargentii Very beautiful in flower, purple-black fruit Betula nigra ‘Cully’ Heritage Resistant to Bronze Birch Borer and Japanese Beetle Betula ‘Parkland Pillar’ Taller and narrower than ‘Fargo’ Betula ‘Verdale’ Resistant to Bronze Birch Borer Phellodendron amurense Interesting corky bark, clusters of yellowish fruit turning to black and persisting through winter. Betula ‘Fargo’ Good resistance to Bronze Birch Borer, drought tolerant, adaptability to heavy clay soils and fairly high ph. Betula papyrifera ‘Varen’ Exceptional snow whit bark, resistant to bronze birch borer. Medium Trees 25 ft. to 40 ft. Require 30 feet spacing between trees and 5 to 7 ft. planting strip Botanical Name Notes Alnus glutinosa moist well drained soils. Full sun or partial sun. Platanus occidentalis ‘Bismarck’ Not drought tolerant. Also known as Sycamore Larix siberica Deciduous conifer Corylus colurna No serious pest problems. Quercus bicolor Chlorosis can occur in alkaline soil. Quercus ellipsoidalis Tolerant of alkaline soils. Quercus rubra One of the fastest growing oaks. Will develop chlorosis in high alkaline soils. Tilia Americana Pyramidal shape Quercus macrocarpa Ph adaptable, more tolerant of city conditions than most oaks. ---PAGE BREAK--- Elm, Discovery 3 S Elm, Frontier 5 M Elm, Prospector 4 M Goldenrain Tree 5 MF Honeylocust, Northern Acclaim 3 F Hornbeam, American 3 S Hornbeam, European 5 M Horschestnut, 'Fort McNair' 3 S Horsechestnut, 'Brioti' 4 S Ironwood, 'Sun Beam' 3 SM Katsuratree 5 Linden, Harvest Gold 2 Linden, Littleleaf 4 Mountain Ash, Korean 4 Mountain Ash, Oak leaf 4 Oak, Prairie Stature 3 Ohio Buckeye 3 Pear, Chanticleer 4 Quercus x bimundorum ‘Midwest’ Hybrid between Bur and English Oaks. Aesculus glabra Can get leaf scorch in summer, best in light shade. Nuts are poisonous. Pyrus calleryana ‘Chanticleer’ Narrower than other pears, resistant to fireblight. Tilia cordata Pyramidal shape. Sorbus alnifolia Ph adaptable, fireblight resistant, does not like polluted conditions. Sorbus x hybrid Leaves look similar to oak. Ostrya virginiana ‘Camdale’ No serious pest problems. japonicum Needs ample water Tilia mongolica ‘Harvest Gold’ Yellow fall color, exfoliating red bark. Carpinus betulus Generally free of problems Aesculus x carnea 'Fort McNair' Hybrid between Red buckeye and Horsechestnut, dark pink flower Aesculus x carnea ‘Brioti’ Very little seadpods, pink flower. Koelreuteria paniculata Tolerant of most conditions. No serious pest problems. Gleditsia triacanthos var. inermis ‘Harve’ Similar to ‘Skyline’ but more winter hardy Carpinus caroliniana No pest problems, no litter, slow growing, beautiful fall color Ulmus davidiana var. Japonica ‘Discovery’ Resistant to Dutch Elm Desease, leaf aphid and elm leaf beetle. Ulmus x ‘Frontier’ Tolerant of most conditions. Considerable resistance to Dutch Elm Disease Ulmus wilsoniana ‘Prospector’ Same as above, could be used under power lines due to it’s vase shape ---PAGE BREAK--- Pear, Mountain Frost 3 Pear, Prairie Gem 3 Persian Parrotia 4b Common Name Zone Growth Rate Bird Cherry, 'Merlot' 3 Cherry, 'Pink flair' 3 Chokecherry, Amur 'Goldspur' 2 M Crabapple, 'Adirondack' 4 F Crabapple, 'Coralburst' 3 M Crabapple, ‘Gladiator’ 2 M Crabapple, Golden Raindrop 4 M Crabapple, ‘Jewelcole’ 4 M Crabapple, Marilee 4 M Crabapple, 'Purple Spire' 3 S Crabapple, ‘Red Barron’ 4 M Crabapple, ‘Sentinel’ 4 M Dogwood, 'Snow Mantle Gray' 3 SM Hawthorn, 'Crimson Cloud' 4 M Crataegus laevigata ‘Crimson Cloud’ Malus ‘Red Barron’ Malus ‘Sentinel’ Cornus racemosa ‘Jade’ Best grown as multistem. Malus ‘Jewelcole’ Disease resistance is good, berries hold on till spring Malus ‘Jarmin’ Disease resistance is good, fruitless Malus ‘Purple Spire’ Columnar, great for tight spots Malus ‘Coralburst’ Nearly sterile. Malus ‘Gladiator’ Pink purplish flowers and less fruit. Malus ‘Schmidtcutleaf’ Prunus sargentii ‘JFS-KW58’ Prunus maackii ‘Jefspur’ Interesting bronze exfoliating cherry-like bark. Malus ‘Adirondack’ Disease resistance is good Small Trees 15 ft. to 25 ft. Require 20 feet spacing between trees and 4 ft. + planting strip Botanical Name Notes Prunus padus 'Merlot' Great alternative to Canada Red Chokecherry without the suckers Pyrus usseriensis ‘Bailfrost’ Heavily flowering, beautiful fall tree. Pyrus ussuriensis ‘MorDak’ Excellent resistance to fireblight, will not fruit without other pear nearby. Parrotia persica Excellent stress tolerance withstanding drought, heat, wind, cold once established. ---PAGE BREAK--- Hawthorn, 'Paul’s Scarlet' 4 Hawthorn, 'Lavalle' 4 Hawthorn, 'Snowbird' 3 Hawthorn, 'Toba' 3 Linden, 'Summer Sprite' 4 Maackia, Amur 3 Maple, Hot Wings 3 Maple, Rocky Mountain Glow 4 Maple, Tatarian 3 Moutain Ash, 'Red Cascade' 3 Pear, Jack 4 Persian Parrotia, 'Vanessa' 5 Plum, 'Big Cis' 4 Plum, "Crimson Pointe' 4 Plum, 'Mt. St. Helens' 4 Plum, 'Newport 3 Plum, Princess Kay 2 Redbud, Eastern 4 M Serviceberry, 'Autumn Brilliance' 4 Serviceberry, 'Cole's' 4 Serviceberry, 'Princess Diana' 3 Amelanchier grandiflora ‘Princess Diana’ Cercis Canadensis Amelanchier x grandiflora ‘Autumn Brilliance’ Amelanchier x grandiflora ‘Cole’ Prunus Prunus 'Newport' Prunus nigra ‘Princess Kay’ Very cold hardy, fruitless. Parrotia persica ‘Vanessa’ Prunus x cistena ‘Schmidtcis’ Prunus cerasifera ‘Cripoizam’ Acer tataricum Similar to Amur Maple, possibly more tolerant of high ph soils. Sorbus Americana ‘Swarfcrown’ Pyrus calleryana ‘Jaczam’ Maackia amurensis Blooms late summer, ornamental seed pods and bark offers winter interest. Acer tataricum Showy red samaras in summer. Acer grandidentatum ‘Schmidt’ Crataegus x mordensis ‘Snowbird’ Crataegus x mordenensis ‘Toba’ Tilia cordata ‘Halka’ Crataegus laevigata ‘Paul’s Scarlet’ Susceptible to leaf spot Crataegus x lavallei ---PAGE BREAK--- Serviceberry, 'Robin Hill' 3 Serviceberry, 'Snowcloud' 4 Tree Lilac, 'China Snow ' 3 Tree Lilac, 'Ivory Silk' 4 Zelkova, City Sprite 5 M Zelkova, Wireless 5 If another species is desired please submit request to parks and recreation for consideration Do not fertilize in first year of planting. Call 811 for underground utilities prior to any digging. Maples have been removed temporary from the approved species list due to 48% of Kalispell's tree being maple. As species level out maples will be added back in. Zelkova serrata ‘Schmidtlow’ Planting Tips Avoid planting trees to deep. The trees first major root should be at ground level. Often time’s trees come too deep from the nursery and require Keep sod away from the trees stem. The use of mulch is highly advised. Place 2-3 inches deep, out to the drip line of the tree. Watering trees require different watering requirements than turf. Trees should be watered before and after planting. Deep root watering should be Syringa pekinensis ‘China Snow’ Syringa reticulata ‘Ivory Silk’ Zelkova serrate Amelanchier grandiflora ‘Robin Hill’ Edible berries Amelanchier laevis ‘Snowcloud’ Edible berries