Azur Star Kohlrabi has attractive, slow-bolting, flat-round, purple-skinned bulbs with crisp white flesh. Similar in flavor and quality to Kohlrabi; 3 to 5 days later and slightly less uniform. Harvest when bulbs are 2 to 3 inches in diameter. Harvest in about 50 days. Germination rate about 80% and better. David’s Garden Seeds is a Veteran owned business that has been offering quality seeds since 2009.