PuurK is a highly concentrated organic potassium formula designed to provide essential late-stage support for plants to finish strong. Potassium plays a key role in flower stacking, ripening, and stress resistance during final stage development. It is made from durian fruit shells left over after commercial food processing, which are usually landfilled due to their odor and decomposition challenges. By extracting potassium from these discarded shells, the result is a plant-available, sediment-free liquid suitable for any growing system, whether soil, coco, hydro, foliar, or beyond.