Radish (Raphanus sativus). Cabbage relatives that come originally from Asia. We sell a wide variety of heirloom radishes, including both small (salad type) and larger, winter storage types. Growing radishes is easy, and they may be planted in spring or fall, and in most locations, right through summer as well. Direct-sow radish seeds where they are to grow, as they do not transplant well, and be sure to make repeated plantings to have salad types all season long. Storage types are best sown in late summer.