Humboldt Nutrients Natural Grow organic 3-1-3 is an ultra-concentrated natural grow formula designed to give your plants the nutrient-rich foundations needed during the vegetation and flowering period. Used in conjunction with Bloom Natural and DeuceDeuce, Grow Natural will allow your plants to reach their full potential. Naturally derived, our Grow Natural is a blend ocean fish, seaweed extract, Quillaja saponaria, bentonite, Yucca extract and cane molasses.