Populus grandidentata
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Hardiness Zone: 1-6 Height: 60-80 feet; 18-24 metres Spread: 20-40 feet; 6-12 metres Sun: Full sun Water: Wet to medium Wildlife: Aspens are important browse for a variety of game animals. The seed, buds and catkins are utilized by many birds. Leaves of Large-toothed Aspen provide food for various butterflies and is a food source for larvae of Viceroy and Eastern Tiger Swallowtail. As this tree becomes older, it often forms cavities that are used as nesting habitat by the Red-Breasted Nuthatch, owls, and woodpeckers, while other birds nest along its branches. Tolerates: All soils; wet soils Culture: While easily grown on a variety of soils, this species prefers moist well-drained conditions, and sandy loam. In some situations, it can spread aggressively by developing clonal trees from underground runners. Noteworthy Characteristics: Large-toothed Aspen is a fast growing tree with a narrow, pyramidal crown when young, which develops into an oval open crown at maturity. It sports a golden-yellow fall colour.