Jef79answered grow question 4 years ago Hello.. Hope u are well.. Ive been told (not sure how true tbh but sounds right😂), it takes 4 days for cannabis to take water/nutes from root and assimilate them properly to the tips/flowers.. So a 5day flush in theory shud release most her baddies(i think this depends on growing methods tho tbh eg soil/hydro) .. For a perfect flush just keep her on a plain ph'd water diet for 7-10 days.. Again i think the more food she has had in general the more flushing of her roots and flowers will b needed.. Stay safe n gud luck on future gardens.. 👍🍀