Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Comprehensive, useful guidebook

Each of the 500+ entries in this comprehensive guidebook includes symbols indicating sun, shelter, and water requirements of the plant, flowering period, and zone(s) of hardiness. The plants are organized by categories such as indoor flowering plants, rock garden plants, climbers, medicinal plants, water plants, and so on. There is a section on roses, one on lilies, and one on orchids. Each entry includes family, origin, brief description, flowering time, use, propagation , environment, soil type, and soil moisture. Glossary, index. For additional photos of many of these plants, seeOrnamental Plants & Flowers of Tropical Mexico.