GIJOSEanswered grow question 5 years ago I agree, definitely do it in phases though. You dont want to put unnecessary stress on the plant. I usually defoliate through out veg, I keep the larger fans till one week before I send to flower then I clip them off, the last is after the 3rd or 4th week of flower, I remove the excess to allow light penetration and air flow. Cheers!-G.I.JOSE