Designed for horticulture, horticulture therapy, and botany students at Edmonds Community College (Washington), this 6-hour module explores the pre-Columbian use of plant materials in Peru and its relationships to cultural practices in modern Peru. The first sections provide basic information about the module, such as its objectives, the concepts to be presented, required readings, purpose and instructional format, and out-of-class projects. Next, informational materials are presented for the six course units: (1) Historical Overview, which includes information on Peru's cultural groups, history, and the role of agriculture and horticulture in the society's development; (2) Gathering Horticultural Information, which discusses the difficulties of obtaining information on the lifestyles of societies that had no written language and cites methods of overcoming these difficulties; (3) Domesticated Plants and Their Uses, which looks at the variety of plants that are either known to have been cultivated or were possibly cultivated, and were collected at various periods in the history of Peru; (4) Plants in Mysticism and Medicine, which discusses the cultural significance of particular plants; (5) Ancient Traditions in Modern Life, which examines the operation of social customs and patterns in modern Peru; and (6) The Effect of Peru's Horticulture on the World, which reviews the influences of the exportation of certain Peruvian plants into Europe. (HB)