Food forests are the most productive agriculture system in the world. They have the lowest labor and highest yield. Food forests produce more food, medicinal plants, fiber, building materials, fodder, spices, herbs, flowers and other beneficial plants per square meter than any other farming method. Imagine how much work goes into tilling, planting, spraying and weeding row crops such as corn every year. In stark contrast, food forests are virtually self-sustaining once established. They’re also less vulnerable to pests and swings in weather.