PK Boosters

PK boosters add extra phosphorus and potassium during flowering, when plants want more of both than a base feed supplies. Canna PK 13/14, Hesi PK 13/14, House & Garden Shooting Powder and Top Booster, Dutchpro Explode, Plant Magic PK 13/14 and Platinum PK 9/18, Buddhas Tree PK 9-18, Mills Ultimate PK, Vitalink Buddy and Ionic PK Boost.