Green Planet PK Spike

Derived from multiple sources of phosphorus and potassium, PK spike is designed to help facilitate bulking and ripening of many flowering plants.

PK Spike is engineered to provide a uniform quantity of phosphorus and potassium to your flowering plants. Designed with over 25% more P/K than the next industry leading competitor, this product can be applied at a maximum rate of 1.0 ml/L to achieve a 250 ppm boost to your plants.