The bell pepper is the fruit of plants in the Grossum Group of the species Capsicum annuum. Cultivars of the plant produce fruits in different colors, including red, yellow, orange, green, white, chocolate, candy cane striped, and purple. Bell peppers are sometimes grouped with less pungent chili varieties as "sweet peppers". While they are fruits—botanically classified as berries—they are commonly used as a vegetable ingredient or side dish. Other varieties of the genus Chili Pepper are categorized as chili peppers when they are cultivated for their pungency, including some varieties of Capsicum annuum.
Peppers are native to Mexico, Central America, and northern South America. Pepper seeds were imported to Spain in 1493 and then spread through Europe and Asia. The mild bell pepper cultivar was developed in the 1920s, in Szeged, Hungary. Preferred growing conditions for bell peppers include warm, moist soil in a temperature range of 21 to 29 °C (70 to 84 °F).