7-10 days for microgreens or 70 days to full maturity. Vigna radiata 'Mappe Green'. Mappe Green Mung Bean Seeds. Non-GMO, Heirloom. Warm-season annual. Typically grown for their flavorful and crispy bean sprouts, mung beans are alternatively grown to full maturity and cultivated for green beans with 7-9 beans per pod. These delectable beans have a variety of uses in the kitchen and are a terrific addition to any garden. Grow Mappe Green Mung beans in a container, garden bed, field, or greenhouse and they will flourish.—Approx 445 seeds / oz.