Our Premium 3-1-2 Liquid Fertilizer Concentrate For Citrus Trees contains highly active benzyl aminopurine, magnesium sulfate complex, amino acid fertilizer. It can enhance the juiciness of indoor citrus fruits, increase its resistance to indoor stress, and keep trees healthy. It's easy to use: Mix 1 teaspoon of product with 1 gallon of water and sprinkle it on the roots of citrus trees. You can ensure that citrus trees grow naturally indoors as well as outdoors.