Before planting, make a scale drawing of your design on paper so that you can space trees properly and refer back to your plan at pruning time. A sketch will also help you decide how to realize your design—with a wood- lattice frame or a grid of wires for support, perhaps—which will dictate the construction materials you need. If you're working with a wall and hope to capture extra warmth for fruit, pick one that faces south or east. Shown: On a backyard patio, a plant...