Soil/Soilless Applications: For every 10 L (2.5 gal) of water, mix in 1 g (1/4 tsp) of Growth Booster. Dissolve directly into your watering jug. Water each plant with 1/2 L (1/2 qt) of the mixture when you see new growth starting.USE ONLY ONCE. performance in all mediums and dissolves completely in water.