you could cut it now if you need too because of frost or bad weather but if youv got good wether forecast let her grow for another week
wait until the crystals are creamy looking and the leaves start to turn yellow
I'm in no hurry and I just gave them some bloom food a couple days ago so now I'll flush for a couple weeks and see how it goes, I just don't want to wait too long and ruin them.
I just picked up a pocket microscope 30x, My local head shop had one. You can see the trichomes on the buds. Ive been told that once they look milky and not clear they are good to go. Just google trichomes.