The black radish, also known as the Spanish radish or Turnip-rooted black radish, is a root vegetable with a pungent flavor. The black radish is native to Europe and Asia, and has been cultivated for centuries.
It is a source of several vitamins and minerals, including vitamin C, potassium, and calcium. Black radish seed can be sown directly in the garden in early spring.
For best results, sow the seed in moist, well-drained soil in full sun. Black radishes are ready to harvest when they are 4-6 inches in diameter.