wait until all the hairs are red for sure. minimum 8 weeks of flowering time starting when you see the pistils. But you look id say 2 weeks away from a great harvest
. Im not a pro, but i know a couple signs. Also the leaves that are smaller and stick out a lil bit around the cola will generally curl up its sides and begin to look stiffer pretty much. It will just look ripe and almost an amber type glow from the thc if ya dig lol. if u go atleast 9 weeks from when you saw pistils, you could safely harvest w.o degrading it honestly.