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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.
How to Prune Pear Trees. As a young pear tree grows, the main stem of the plant should always be taller than the surrounding branches. Pear tree branches naturally grow upright, but the branches spread as it begins to bear fruit.The weight of the fruit pulls the branch down into a more horizontal position.runing a pear tree begins in late winter before the buds begin to swell. Earlier pruning may encourage excessive vegetative growth and suckering in spring and summer. It also increases the chances of winter injury to the pruning sites.