60 to 70 Days to maturity. Raphanus sativus. Red Meat Chinese Radish Seeds. Cool Season Annual, Heirloom. Red Meat radishes, originally from Northern China, are a gorgeous watermelon radish with amazing flavor! While they still have that radish kick, these radishes are also shockingly sweet. Their green shoulders and white skin are clean and appealing, while their juicy red flesh is sure to be a crowd pleaser. This variety will bolt very easily, so grow them as a winter crop for the best results. The tops are delicious too! Red Meat radishes are an all-around perfect choice. ~ 3,625 seeds / oz.