ULTIMATE PK ULTIMATE PK is a powerful heavy weight bloom booster designed to be used the last 2 to 4 weeks of the flowering stage. The superior composition of ULTIMATE PK provides the plant with all the nutrient needed during ripening for more abundant fruit set, hard cell structure and the best possible flavor and aroma.

ULTIMATE PK is responsible for:
Larger and harder fruit and flowers with the best possible aroma and flavor (Discontinue use of C4 when ULTIMATE PK is introduced).
ULTIMATE PK is the ultimate bloom booster on the market today!!