Chrysanthemums, sometimes called mums or chrysanths, are flowering plants of the genus Chrysanthemum. They are native to Asia and northeastern Europe. The name “chrysanthemum” is derived from the Greek words chrysos (gold) and anthemon (flower). The “Festival of Happiness” in Japan celebrates the flower. Over 140 varieties of chrysanthemum have gained the Royal Horticultural Society’s Award of Garden Merit. Chrysanthemums are perennial plants. A perennial plant or simply perennial is a plant that lives for more than two years. Yellow or white chrysanthemum flowers of the species C. morifolium are boiled to make a sweet drink in some parts of Asia.