 Permaculture also draws on the idea that in nature, ecosystems by and large have no trouble sustaining themselves, and that these systems can be replicated by human gardeners.In the same way, many organic farmers and gardeners draw upon the idea of polyculture, and that plants can work together to form a strong community that requires little to no human intervention.The idea is that an increased diversity of well-selected species inhabiting the same space will make the plant community healthier and less maintenance-intensive—that is, dogged by a minimum of weeds, insect pests, soil infertility, need for watering, etc.