Black Oil Sunflower Seeds are easy to grow into delicious sunflower sprouts. Harvest between 3-4'' height. Black oil sunflower seeds have a thinner shell making it easy for people (or birds) to crack open and enjoy. Sprouts and seeds taste great in salads as a substitute for lettuce and are a great source of antioxidants, protein, fat, fiber, and vitamin E. Improve recipes for sandwiches, soups, salads, scrambled eggs, and wraps.