Weeds are wild plants that have survived in the face of centuries of hostility. Many gardeners who are unfamiliar with the versatility of weeds think of them as a nuisance. They can be good, bad, dangerous, or beautiful. Above all, they are tough. This essential guide explores the virtues of good weeds, including how they can protect soil and add to soil fertility; act as companion plants in gardens; provide food for farm livestock; support wild life; provide herbal remedies for minor ailments; yield vegetable dyes; and finally, give us weed cuisine: nutritious food and drink for free.