Redbor Kale F1 hybrid is a classic, curly form that produces exceptional, upright, 24" inch tall, deep purple-red ruffled leaves that are cold hardy, easy to harvest and high yielding. Redbor is typically used for garnishes, however, for eating, this variety will have its best flavor and curled leaf appearance after having been exposed to frost. 60 days. Packet: 50 seeds.