Gold Label Ultra PK Flower StimulatorGold Label Ultra PK Flower Stimulator is a flowering additive that supercharges flower production. Based on advanced polyphosphates and chelated trace elements, Gold Label Ultra PK has been specifically developed to perfectly balance NPK and trace elements. The advanced formula prevents phosphorus depositing at pH levels >6.2, promoting availability of Ca, Mg and trace elements, whilst keeping drip lines clean.
