mines went for 12.5 weeks took all the tops down and let the other lower half go another week. branches out crazy so make sure you have room. i used advanced nutrients sensi 2 part for 3 weeks under 400 mh then switched to connoseur and big bud later on in flowering also switched to 600 hps at forst week of flowering. i ran lights 24/7 wich my explain the long flowering time but i manage to get 7 zips dry out of it and is great smoke