Schultz® Orchid Water Soluble Plant Food. A special 19-31-17 blooming formulation provides the necessary nutrients all types orchids. Add 1/4 tsp per gallon of lukewarm water every time you water your orchids. For feeding less often, once or twice a month, use 1/2 tsp per gallon of water. One bottle contains enough for 50+ water applications. Guaranteed Analysis: Total Nitrogen 19%, Ammoniacal Nitrogen 4.2%, Nitrate Nitrogen 1.4%, Urea Nitrogen 13.4%, Available Phosphate 31%, Soluble Potash 17%, Boron 0.02%, Soluble Copper 0.07%, Chelated Iron 0.33%, Chelated Manganese 0.05%, Molybdenum 0.0005%, Chelated Zinc 0.07%.