Radish, (Raphanus sativus), annual or biennial plant in the mustard family (Brassicaceae), grown for their swollen tap roots which can be globular, tapering, or cylindrical. These root vegetables also have a good amount of vitamin C, which acts as an antioxidant to protect your cells from damage. Radish develops the best flavor, texture and root size when the temperature is between 10-150C. Radish can be grown on all types of soil but a sandy loam, friable soil is considered best.