The Gardener's Companion to Medicinal Plants is a beautifully illustrated giftable gardening reference book, which combines exquisite botanical illustrations with practical self-help projects. Every day sees a discovery in the press about the new uses of plants, and it's certain that most of our most important drugs are derived from plants. From willow (used to procure aspirin) to periwinkle (used in chemotherapy to treat lymphoma) many common garden...