Grotek Black Pearl 4l

For media mixing, work 2 tbsp (25 ml) per Quart (1 L) into the soil blend. For transplants, dust 3 tbsp (45 ml) directly under the roots and work lightly into soil. Water thoroughly and then place plant into transplant hole. Black Pearl™ can be used as a top dress, but will be more effective when incorporated into the medium/soil. This formula contains soluble and insoluble inputs and is not meant for re-circulating water culture.