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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.
Standard-size pear trees reach 30 feet tall. Even if you have the room for a tree that size, the fruit from its upper branches can be hard to harvest. That's why most home pear growers choose dwarf or semidwarf varieties.