Watermelon radishes are an heirloom variety of daikon radishes, they are both root vegetables and brassica family members (just like superfood broccoli and cabbage). They originated in China and are called shinrimei, which means “beauty in the heart\\" if you slice one open, you will reveal a bright pink exterior surrounded by a white rind. While regular radishes are spicy and peppery, the watermelon radish is milder. It still has a peppery bite, but it's milder and only slightly peppery with almond-sweet notes. Nothing at all like a watermelon!