FoxFarm Tiger Bloom is a phosphorus fertilizer that contains nitrogen to support vigorous growth. It is formulated with a low pH to maintain stability in storage and keep micronutrients available. Tiger Bloom can be used for both hydroponic and soil applications. Tiger Bloom is designed to encourage abundant fruit, flower, and multiple bud development. Use Tiger Bloom at the first signs of flowering through harvest. Garden tip: Use Tiger Bloom at the first sign of flowering at the rate of 2-3 teaspoons per gallon of water. It can also be used as a foliar fertilizer just apply it to both sides of leaves early in the morning.