3-4 Days to Harvest. Vigna angularis. Organic Adzuki Bean Sprouting Seeds. With over 30 grams of plant-based protein per cup, these organic sprouts will add nutrients and a fresh crunch to any dish. Adzuki sprouts are rich in fiber, iron, and calcium, making them a nutrient-dense supplement for any diet or weight loss goal. These organic sprouts have a sweet and nutty flavor, similar to garbanzo, and are crisp, crunchy, and filling. They require a longer soak period than other sprouts and are a great choice for those with some sprouting experience. ~250 seeds/oz.