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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.
Plant pear trees in full sun and give them good air circulation and deep, well-drained soil that's slightly acid (pH 6.4 to 6.8). Set them so the graft unions are 2 to 3 inches above the soil surface.