Stickanswered grow question 7 years ago Yes you can start flushing now (at least 10 days), since your buds are showing 50% brown/curled pistils. But honestly, you won't be able to find the perfect harvest window unless you got yourself a tiny handheld microscope/magnifier. Even the cheapest one will be useful, you can buy it for 3$ on any marketplace like AliExpress/Amazon/Bangood.. Believe me, you won't regret this "investment"! I'll be around, good luck with these beauties!