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The ornamental pear and its cultivars, Redspire and Aristocrat are the tallest of the flowering trees, reaching up to 50 feet high. Fauer is the smallest at a diminutive 20 feet tall. The Capital variety is in between, reaching up to 35 feet in height.
Aristocrat ornamental pear trees have smooth branches that grow outward, rather than upright. This results in a tall, oval-shaped tree that averages 24 to 40 feet in height and is less susceptible to wind damage than more spreading trees. The trees grow in USDA hardiness zones 5 to 9 in full sun.