When you’re approaching the end of the flowering and fruiting phases of your plant’s lifecycle, the nutrient intake slows down dramatically even through there are considerable amounts of nutrient reserves left in the medium and plant structures, including leaves, fruit, flowers & sap.
This is the plant showing you that its ripening and almost ready to harvest. Flushing is the process of removing excess nutrients from the medium which forces the plant to use up its remaining stored resources, creating a cleaner product. The use of HydroTops Flush is incredibly important in the quality and taste of your harvest. It has been compared in importance to using a PK booster to increase flowering and fruiting yield.