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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.
Types of Non Fruit Bearing Pear Trees. Most varieties of ornamental pear trees have an erect habit and rounded shape. Different cultivars have different canopies from high to low. âAristocratâ and âRedspire,â suited to USDA zones 5-8, have a cone shaped habit, while âCapitalâ tend towards a more columnar mien and is suited to USDA zones 4-8.