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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.
The common pear (Pyrus communis) grows well in U.S. Department of Agriculture hardiness zones 4 through 9. These pear trees are long-lived with strong vertical branches that grow up to 40 feet tall and 15 to 25 feet wide.Pears require a winter chill to produce a good crop and good air circulation to avoid disease.hese pear trees are long-lived with strong vertical branches that grow up to 40 feet tall and 15 to 25 feet wide. Pears require a winter chill to produce a good crop and good air circulation to avoid disease.