its said you dont need to flush using organics & if you do its cause theres something wrong with your plants,but i use organic soil & nutes & flush every 3-4 weeks all the way through veg & flowering.
the reason is you usually get some sort of toxic build up or other problems ,so i flush using a very weak nutrient solution this stops the chances of nute lock out, which the plant will do if you flush with plain water ,as it goes into self preservation mode thinking its not getting anymore nutes so stores the remaining nutes to use for the rest of its life. which is bad so flush using a very mild nute solution & your cool
happy growing M.
