Margaret Grieve was a British herbalist and writer best known for her extensive work on the medicinal, culinary, and magical properties of herbs. She is most famous for her book "A Modern Herbal," first published in the 1930s, which remains a classic in the field of herbalism. Grieve's work reflects her deep knowledge of plants and their uses, gleaned from years of personal experience and research. Her book provides comprehensive descriptions of the history, folklore, and practical applications of a wide range of herbs and is still widely used today by herbalists and enthusiasts of natural medicine.