hey all, im wanting to flower my babies, they are in the ground so moving them inside at night is out of the question, if i put a black bag over them to get 12/12, how long will i need to do it? will i have to continue it until the are ready to harvest to keep them from going back into veg? or can i stop covering them after a little while and let them finish flowering? or is there any other way to flower them before they are ready? thanks for reading, i await your responses