12-14 Days to maturity. Tropaeolum nanum. Premium Organic Nasturtium Microgreen Seeds. Nasturtium microgreens have a unique and spicy taste to them you can’t get with any other microgreen. They have a delicious and distinct peppery flavor that is perfect for fresh dishes. These are easy-to-grow microgreens that offer a ton of flavor and nutrients in return for minimal effort! Enjoy these easy-to-grow, large-leaf micros! ~220 seeds/oz.