Botanicare Silica Blast is a beneficial supplement to be used in conjunction with your standard nutrient program. Silicon aids in strengthening plant tissue to help plants flourish in adverse environmental conditions such as heat, drought, and frost. Botanicare Silica Blast in container gardens or soilless hydrogardening applications. For container gardens, use between 1/2 - 1 teaspoon per gallon of water. Apply at every watering or every other watering. For hydroponics, midsize plants will need 1/2 teaspoon per gallon, while mature plants need 1 teaspoon per gallon. Apply to reservoir every 5-7 days and adjust pH to 6.0.