in 1597 his famous Great Herbal. In 1633 an enlarged and amended version was printed. Gerard used the Materia Medica of Dioscorides, the works of the German botanists Fuchs and Gesner and the Italian Matthiolus. The 1597 and 1633 editions are commonly referred to as Gerard's Herbal.
The General Historie of Plants is famous for the detailed descriptions of plants, the folklore contained in the articles and its splendid prose. Its origins are somewhat controversial. The Queen's printer John Norton had commissioned a Dr. Priest to prepare an English-language translation of Rembert Dodoens' immensely popular herbal. Priest having died before completing the work, Norton asked Gerard to take over. Gerard finished the translation, rearranged the work, and added as-yet-unpublished material of an herbalist named L'Obel.. However, in the herbal Gerard states that Priest's translation had disappeared and that he had written a new book. Modern-day authorities disagree as to the extent of original work in Gerard's herbal.
Gerard's Herbal was later revised by John Goodyer and Thomas Johnson.