This slow-release nitrogen fertilizer guaranteed to contain not less than 6% nitrogen, at least 85% of which is water-insoluble (WIN). The available phosphorus is not less than 4%. Milorganite also contains 2.5% iron. Calcium in Milorganite helps in neutralizing acidic soils and the effects of its nitrogen. This organic fertilizer can be used safely on lawns, vegetables, flowers, trees and shrubs; also a carrier when spreading grass seed.
Coverage is 3,000 square feet