It is widely known that plants need elevated levels of potassium and phosphorus during flowering to optimize yield and biochemical profiles. However, unlike products based on cheap ionic monopotassium phosphate (MPK), Indica’s HIMALAYAN HARDENER provides these nutrients in a superior form = polymerised phosphorus. This is important because phosphorus is easily locked out and becomes unavailable in a matter of hours/days when applied to any system due to precipitation onto the growing media or with other elements (particularly calcium and iron). In contrast, the polymerised phosphates in HIMALAYAN HARDENER release the phosphorus over a period of days to ensure there is always an active available form of phosphorus for the plants to access.