Espalier Fruit Trees For Wall, Hedge, and PergolaA visual manual for establishing and maintaining espalier fruit trees. By training fruit trees and shrubs to grow in controlled shapes, you accomplish two goals: improved appearance and increased productivity. Depending on location and demand, espalier fruit trees can offer privacy, weather protection, and decoration, not to mention an abundant and delicious harvest. All types of trellises, including wall covering cordons and free standing pergolas,