This is the Original Blossom Booster with the proven 1:3:2 nutrient ratio– the quality is unmatched in the home gardener market. Trusted by many professional growers as a tool to fill out a blooming container. This formula will produce the same GREAT results for you at home. For use on All indoor and outdoor flowering plants like: geraniums, impatiens, begonias, and marigolds. Great for vegetables and fruit. Can also be used as a transplant solution.