5 lb BuildABloom is BuildASoil's famous amino acid chelated mineral formula for flowering plants. Most companies will offer a bone meal, guano or phosphoric acid product for their flowering line up, but we didn't want to go that route! The reason it works? The premium vegan non-gmo soy aminos help chelate the micronized minerals and make the phosphorus, potassium and calcium more readily available. The results are dramatic! You'll experience bigger, denser and sweeter flowers and you'll know exactly why. BuildABloom