Seems a grey area the flushing thing ....its only me smoking it and if its not harsh ,im happy [emoji111]
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Some say you don't need to flush at all in soil. I usually give plain water for a week before chopping but I have taken plants down on full feed and there really wasn't any difference at all.
Flush gives peace of mind tho.. imagine if you ruined a whole crop and ended up with a load of hideous weed for the sake of not feeding for a week.. [emoji848]