Mustard - Mizuna Red Streaks (Organic) - Microgreens SeedsUp to 12 days. Organic Red Streaks Mizuna Mustard Microgreens Seeds. A flavorful mustard sought after because of the spectacular red purple highlights. Grows fast and tenacious. Mustard Microgreens are easy to grow, and adds an interesting zest to any micro salad or sandwich. Select a Different Use for This Seed: Garden Growing Mizuna Red Leaf Mustard Microgreens Latin Name: brassica rapa nipposinica Other Names: Days to Maturity: 8 12 days Growth