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Acceptable Trees for Boulevards Tree List Comments Size Northern Catalpa (Catalpa speciosa) Unique large heart shaped leaves Height 55', Upright Oval Common Hackberry Northern Acclaim Honeylocust Shademaster Honeylocust Skyline Honeylocust Stately Manor Coffeetree Quaking Aspen (Celtis occidentalis) Native to S.D., Great Shade Tree Height 65', Arching, Rounded (Gleditsia triacanthos 'Harve') Provides light shade, Seedless, Hardier Height 45', Upright, Symetrical (Gleditsia triacanthos 'Shademaster') Provides light shade, Seedless Height 55', Symetrical (Gleditsia triacanthos 'Skycole') Provides filtered shade, Seedless Height 50', Pryamidal (Gymnocladus dioica 'Stately Manor') Seedless, Insect & Disease Resistant Height 50', Open, Broadly (Populus tremuloides) Attractive Leaves and Bark, Potential to Sucker Height 65', Pyramidal to Rounded Bur Oak Swamp White Oak Regal Prince Oak American Linden Boulevard Linden (Quercus macrocarpa) Native, Moderately fast growth Height 60', Open, Rounded (Quercus bicolor) Easy to transplant, Moderate fast growth Height 55', Narrow, Open (Quercus x warei 'Long') Dark Green Leaves with Silver Beneath Height 55', Upright growth habit (Tilia americana) Not for boulevards less than 6 foot width Height 70', Pyramidal to Rounded (Tilia americana 'Boulevard') Narrow, pryamidal form, pale yellow flowers Height 60', Pyramidal, Narrow Accolade Elm Discovery Elm New Horizon Elm Danada Charm Elm (Ulmus carpinifolia 'Morton') Requires Annual Pruning, Fast Growth Height 65', Vase Shape (Ulmus davidiana var. japonica ) Requires Annual Pruning & training for best form Height 60', Upright, Arching (Ulmus 'New Horizon) Requires Annual Pruning, Fast Growth Height 60', Upright Full Crown (Ulmus 'Morton Red Tip') Requires Annual Pruning, Fast Growth Height 65', Vase Shape Autumn Gold Gingko (Gingko biloba 'Autumn Gold') Free of disease and pest problems, slow Height 50', Pryamidal * An Approved Planting Permit is Required Before Purchasing Trees for the Boulevard * TREES MUST BE A MINIMUM 1" inch - 1 1/4" inch CALIPER Anything smaller than 1 inch caliper will not be allowed into the boulevard ** For a boulevard planting permit or other questions, contact: Aaron Kiesz - City Forester 225 3rd Ave SE Aberdeen, SD 57401 605-626-7015 [email protected] Revised September 2011