Check the listing for details. Peter’s Professional 20-20-20 General Purpose Fertilizer with Micronutrients. Condition: New. Listed at 11.99 USD. 100% Original Peter's Professional Series Fertilizer with no fillers or additives. Repackaged from bulk. This product is an absolutely outstanding general purpose fertilizer that can be used on all plants. This blend is widely used by professional orchids growers and aroid growers. The professional series is only made available to commercial growers and is far better than any other 20-20-20 formula on the market.This is a magnificent general-purpose fertilizer that has withstood the tests of time for decades, and as a general purpose balanced fertilizer, it can be used on all plants both indoors and outdoors. Use as a foliar spray, a root drench or a constant liquid feed setting. For general purpose use: Mix 1 teaspoon per gallon of water. Our packaging is airtight and watertight, but once you open the bag you will need to store this fertilizer in a new container as these bags are not resealable. Upgraded resealable packaging with a scoop is available on another listing, please see our other listings or email us for additional information. For best results, all plants should be fed on a weekly basis. NEVER exceed recommended dosage. GUARANTEED ANALYSISTotal Nitrogen (N) 20% 3.89% Ammoniacal Nitrogen 6.11% Nitrate Nitrogen 10.00% Urea Nitrogen Available Phosphate (P2O5) 20%Soluble Potash (K2O) 20%Water Soluble Magnesium (Mg) 0.05%Boron (B) 0.0068%Chelated Copper (Cu) 0.0036%Chelated Iron (Fe) 0.05%Chelated Manganese (Mn) 0.025%Molybdenum (Mo) 0.0009%Chelated Zinc (Zn) 0.0025% Derived from: Ammonium Phosphate, Potassium Nitrate, Urea, Magnesium Sulfate, Boric Acid, Copper EDTA, Iron EDTA, Manganese EDTA, Sodium Molybdate, Zinc EDTA. Potential Acidity: 558 lb. Calcium Carbonate equivalent per ton. Maximum solubility 3 lb. 8 oz./gal.