OG Rapid Flower & Hardener – 1LOG ORIGINAL RAPID FLOWER AND HARDENER 1L OG Rapid Flower and Hardener is a plant additive that has been specially designed to massively activate flower production and deliver an overwhelming increase in flower mass. KEY VALUES: Results can be seen almost immediately with a rapid onset of flowering and then delivering exploding mass with rapid daily increases in weight throughout the entire flowering cycle. This proprietary formulation delivers results