Black Spanish Round Radish Vegetable Seed Discover the unique and flavorful Black Spanish Round radish, a winter-hardy heirloom that boasts a distinctive black exterior with a tender, crisp, and pungent white interior. These large 3-4 inch globes are ideal for winter storage and add a satisfying bite to any dish. Matures in 55 days Does well in storage Heirloom Strong flavor Seed packets available in various sizes Approximately 56,530 seeds per pound