The human practice of growing food from and amongst the trees goes back millennia. There are examples of food forests, or forest gardens, in Vietnam and Morocco stretching back hundreds and thousands of years respectively. Much of the east coast of North America was managed this way by the native peoples before the arrival of Columbus. Forest gardening is the most sustainable and ecological way of producing food known to man. In the past 30 years, forest gardening has become popular thanks to the efforts of dedicated people.
More information about Forest Gardens can be found here..