Biosol® Mix for Gardens is a 100% all natural organic fertilizer that provides a complete nutrient content needed to create healthy living soil. It includes a very slow release 7-2-3 NPK which releases 50% of its nitrogen over 130 days, a well balanced 6:1 carbon ratio, a beneficial bacteria which is great for annuals, a beneficial fungi used by perennials, trees and shrubs and sugars for producing energy.