20-25 days to baby leaf harvest, 40-55 days to full maturity. Brassica juncea. Scarlet Frill Mustard Seeds. F1 Hybrid, Non-GMO. Annual. This is a specialty variety of purple-red mustard from Japan. It is used as a garnish in gourmet cuisines, or harvested young for salad mixes. The unique lacy, frilly deep red and purple leaves have a distinctly spicy flavor. Harvest throughout it's growth from microgreen, to baby greens, to full maturity, depending on the desired use. Approx 13,000 seeds / oz.