60 days to maturity. Raphanus sativus. Shin Dong Ha Korean Hybrid Radish Seeds. Hybrid, warm to mild season annual. Korean radishes are similar in flavor and texture to daikon, so if that’s something you enjoy, try Shin Dong Ha radishes! They are a beautiful white radish with a mild flavor. This variety grows very quickly, and can get as big as two to three pounds! As a bonus, they have great bacterial soft rot resistance and can be stored for a long time. Try this oval-shaped radish variety today, and you won’t regret it! ~ 7,100 seeds / oz.