J R Peters Inc Jacks 51010 Classic No.10 Blossom Booster 10-30-20 Fertilizer - 10 lbs Blossom Booster 10-30-20 is a Professional formula designed to produce more flowers and brighter colors on all indoor and outdoor plants Feeds through both the roots and the leaves;This is the Original Blossom Booster with the proven 1:3:2 nutrient ratio the quality is unmatched in the home gardener market rusted 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