One of the most common of all U.S. apple varieties, the Red Delicious apple originated in Iowa in the 1870s. This sweet, crispy, juicy apple varies in color from striped red to solid midnight red. Western Red Delicious are elongated in shape, with pronounced "feet"; Eastern-grown Delicious are more round. This apple is best eaten fresh or in salads. Red Delicious apples are available year-round, starting in September.