Quote Originally Posted by Shallow Hal
again lip i will disagree with u there . if u but a 1 week old seedling into 12/12 it will start to flower , as a matter of fact this can be don't to determine sex if u like and then can be chage back onto 18/6 or whatever . doing this cuz's lstress though and can cause ur plant to go he /she on ya

Thats because it needs to transfer from the juvenile vegetative state to the adult vegetative state before it reaches maturation for flowering. i have flowered plants at 2-3 weeks old and I would have to assume that the transfer from one state to another could possibly be strain dependent. It is for a fact somewhat species dependent although I don't know if anyone has ever done conclusive studies. From my experience I have flowered plants 2-3 weeks old many times over the years.