Microgreens Seeds- Cherry Belle Radish- 3,000 Seeds Radish microgreens are a great producer with the best yields of any seed variety. Great zesty flavor, loaded with vitamins, and easy to grow. Germinates in 4 to 5 days. Use 2-3 Tablespoons per tray. These greens should be harvested when the plants are 10 to 14 days old. They can be grown in moist paper towels (bleach-free), indoors in a soil mix, or in the garden.