40-60 feet

Ash, Autumn Purple Fraxinus Americana Autumn Purple	Ash, Patmore Fraxinus Pennsylvanica Patmore	Aspen, Quaking Populus tremuloides	Aspen, Swedish Columnar Populus tremuloides 'Erecta'
Beech, European Green Fagus sylvatica	Beech, European Purple Fagus sylvatica purpurea	Birch, Heritage Betula nigra cully	Cedar, Blue Atlas Cedrus atlantica 'Glauca'
Fir, Corkbark Abies lasciocarpa 'Arizonica'	Fir, White Concolor Abies Concolor	Flowering Cherry, Kwanzan Prunus Serrulata Kwanzan	Flowering Pear, New Bradford Pyrus Calleryana New Bradford
Flowering Pear, Redspire Pyrus calleryana Redspire	Ginkgo Biloba - Maidenhair Tree Ginkgo Biloba	Goldenrain Tree Koelreuteria Paniculata	Hackberry, Western Celtis Occidentalis
Honeylocust, Skyline Gleditsia Triacanthos var. Inermis Skyline	Honeylocust, Sunburst Gleditsia triacanthos 'Suncole'	Katsura, Japanese Cercidiphyllum japonica	Linden, Corinthian Tilia cordata 'Corzam'
Linden, Greenspire Tilia Cordata Greenspire	Linden, Redmond Tilia Americana Redmond	Linden, Sterling Silver Tilia tomentosa 'Sterling Silver'	Locust, Purple Robe Robinia Pseudoacacia Purple Robe
Maple, Armstrong Acer freemanii 'Armstrong'	Maple, Autumn Blaze Acer x Freemanii Jeffersred	Maple, Autumn Flame Acer rubrum 'Autumn Flame'	Maple, Bowhall Acer rubrum 'Bowhall'
Maple, Columnar Norway Acer Platanoides 'Columnar'	Maple, Crimson King Norway Acer Platanoides 'Crimson King'	Maple, Deborah Norway Acer platanoides ‘Deborah’	Maple, Emerald Queen Norway Acer Platanoides 'Emerald Queen'
Maple, October Glory Acer Rubrum 'October Glory'	Maple, Red Sunset Acer Rubrum 'Franksred'	Maple, Royal Red Norway Acer platanoides 'Royal Red'	Maple, Spaethi Sycamore Acer pseudoplat 'Spaethii'
Oak, Columnar English Quercus Robur Fastigiata	Oak, Crimson Spire Quercus robur 'Crimschmidt'	Oak, Swamp White Quercus Bicolor	Pine, Austrian Pinus Nigra
Redwood, Dawn Metasequoia glyptostroboides	Spruce, Colorado Blue Picea Pungens Glauca	Spruce, Colorado Green Picea Pungens	Spruce, Sitka Picea sitchensis
Tulip Tree, Columnar Liriodendron tulipifera 'Arnold'