Plant Radiance Combination Formula is an essence formula created for the plant kingdom. We forget that plants have energy fields and are trying hard to hold the integrity of their field just as we are. This combination works beautifully on plants that have to be in the house even though they would rather be outside. It supports plants in natural settings. plants flourish with their energy fields becoming strong enough to ward off pests. To use this formula, just put two drops in with the watering can whenever you water.