The opium poppy is a potent plant that has been cultivated and used for thousands of years to alleviate suffering. The use of plant substances as alternatives to synthetic medicines is resurging due to their beneficial properties and less-toxic side effects. For example, many cancer and HIV sufferers are growing opium for personal use.

Opium Poppy Garden is the only book available that describes the cultivation, harvest and pharmacology of opium in a format that combines literary and instructional writing. The heart of the book is the tale of Ch'ien, a young Chinese man who travels from Costa Rica to Columbia to grow an opium garden in the manner his Taoist grandfather taught him. The story, in conjunction with "The Cultivator's Diary" and the technical appendix, provide the reader with a working knowledge of this plant.