A food forest does not have to be re-planted year after year. Once it is established, it is generally very resilient. Deer and rabbits might come and munch some of the herbaceous edibles in some areas, for example, but other species will not be palatable to them or will be out of their reach. Or perhaps some children will come running through the area in wild play, running off path and possibly causing some damage to the ground cover and herbaceous layers. Not only will they usually grow right back, since many will be perennials and have healthy underground systems, but the trees, shrubs, and vines should be undamaged.