Steamed and ground bone meal which is rich in nutrients and low in fat provides a high level of phosphorous for all stages of growth and flowering. An excellent source of calcium for healthy plant development Steamed Bone Meal is a wonderful food for bulbs and all flowering plants and trees. Application Rate: Apply 5 to 10 lbs per 100 sq.ft. Additional application rates included on package. Available in 6 lb boxes 25 lb bags and 50 lb bags.