the problem is that it hasn't started to flower yet....do you have any pre-flowers?
even if you are in Southern Ontario, you only have 2 months of decent sunlight left....by October the intensity of the sun has diminished
So you need to get it into flower mode ASAP to determine if you have a winner or not...no sense flogging a dead horse (or a male in this case)
I bring my plant into a dark room from 9pm to 7am...which was enough to trigger her gender.
If you are thinking of finishing the plant under indoors, you might as well start sooner than latter, but be careful you don't have spider mites hitch-hiking a ride.
I agree with the other comments, that frame is just too small for this plant.....you will need to keep them small from the start in that box
pic is my indoor/sunshine grow