Roots Organics HPK (0-4-3) 1 Gallon - Seabird Guano

This distinctive organic PK liquid bloom booster is specially extractedfrom our unique natural sources of phosphorous and potassium. Batguano, renowned as an unparalleled organic source of phosphorous, iscombined with Langbeinite, a natural source of potassium mined fromancient sea beds in the American southwest. Carefully collected fromaround the globe, HPK is minimally processed to preserve all of thebenefits and amazing synergistic qualities found in our exceptionalingredients. HPK is incredibly effective in improving flower qualityand is for use in both soil and hydroponics.