At the intersections of culture, gardening and technology we can start to see how plants can become organisational principles for human society in the turbulent times of the 21st century. Although we may need to scavenge at the fringes of contemporary society, we can observe many healing effects that humans can have on their surroundings through a symbiotic collaboration with plants. Some fight desertification and remediate industrial wastelands through natural farming and permaculture. Others design whole lifecycle, closed-loop technological and architectural systems inspired by natural processes, based on the art and science of biomimicry. Yet, these are scattered examples. We still don’t have widespread methods to improve wasteful, often counter-productive human behaviours. How do we encourage broader, longer-term cultural changes? What varieties of culture would be capable of forging symbiotic relationships between postindustrial human societies and the rest of the earth? How do we compost bitterness to grow beauty?