Hi

You probably could start flowering it now if its been growing for over 2 months. Also, to answer your flowering question, 8-11 weeks means it will take that long to flower before you can harvest. It all depends on what strain you have.. sativa or indica. Sativa takes longer.
But the best way for you to know its time to harvest, is to check the trichomes with a microscope.
Best advice though is to start reading up!!!!!

good luck!
bluntwiz Reviewed by bluntwiz on . How long for flowering stage? I've just got a plant from my friend. It's about 2 months old w/ the heigth of 1.2 meters. I've been taking care of it for a week now. I started to buy 2 Grow-Lux fluorescene (plan to buy more soon) and it starts to grow faster than the sun light (b'coz it's rainy season in my country right now). Also, my friend gave it the fertilizer for flowering since the beginning (kinda fool for my friend) so it abit lack of nitrogen and some leaves turn yellow, so i decided to put more nitrogen and Rating: 5