Chrysanthemums are herbaceous perennial plants and consists of about 30 species that are found in nature primarily grown as ornamental but one species is used to produce pyrethrum, an insecticide. This book, Botany, Horticulture and Research of Chrysanthemum has been written to solve the problems faced by floriculture students in order to know about this ornamental flower in detail. We have attempted to describe this floriculture crop systematically to enhance the know how about this flower.