RAW POTASSIUM 0.5 lb. Supplement any feeding program. Fully soluble. RAW Potassium provides added potassium to any plant or feeding program when your plant needs it most or whenever you wish to boost the available potassium in your nutrient formulation due to deficiency or in conjunction with your plant growth strategy. Naturally produced multi-nutrient fertilizer rich in potassium and sulfur. This grade of Potassium is formulated for maximum water solubility. Use in solutions and suspensions where a safe non-chloride and low salt fertilizer is desired.