A fast acting, long lasting fertilizer that maximizes the blooms on your flowering plants. Originally formulated for the professional landscapers, this product has found wide appeal for all annual bedding plants or anything that blooms. ColorStar has four sources of nitrogen, each with a different time release characteristic to give your plant the nutrients it needs when it needs them. The addition of Bone and Blood Meal along with essential micronutrients in this fertilizer blend increases bloom production, ensures plant health, and maximizes plant growth for up to four months. Great fertilizer for flowering annuals, perennials, bulbs, and shrubs. 19-13-6, 4lb box.