Down To Earth™ Fish Bone Meal 3-16-0 is a marine-based alternative to traditional steamed bone meal and is a great source of organic phosphorus and calcium. As one of the three big nutrients for plants, phosphorous plays a role in both root and bloom development and helps produce high-quality fruit and flowers. Boosts root development meaning plants will grow faster and absorb more water and nutrients from the soil. You will have larger carrots, potatoes, and flowers. DTE™ Fish Bone Meal 3-16-0 also contains a small amount of organic nitrogen and is an ideal fertilizer for new garden beds, perennials and bulbs.