10-20 Days to maturity. Borago officinalis. Organic Borage Microgreen Seeds. Non-GMO, organic, open-pollinated, heirloom, annual herb and microgreens seeds. These underutilized microgreens are striking with their vibrant green leaves and distinct, cucumber-like flavor with a delicate sweetness. While they are not the easiest microgreens to grow, they are well worth the patience necessary to learn to grow them properly. While borage, the mature plant, has been used as a nutritionally-dense medicinal herb for centuries, borage microgreens have an even higher nutritional content per gram and can be grown in a fraction of the time. ~950 seeds/oz.