Radishes are a great addition to a variety of dishes and can be easily grown in a home garden. Photo by Courtney Babcock. While most of us know radishes to be red, there are oodles of other varieties in an assortment of colors and sizes. In addition to onions and garlic, workers building the ancient Egyptian pyramids received radishes as payment for their labor, a testament to the value of Raphanus sativus , an underutilized member of the Brassica family. Radishes are also re