I'm a newbie, I have 4 White Widow plants aprox. 37" above soil in a closet grow 31/2' x3'x8' tall. plants vegetated for 30 days, have been on 12/12 for 2 weeks and are growing pistils everywhere, under 400hps. Plants were grown from seeds. My question is; how tall can these monsters get? How much yield? When I plant the final 3 seeds, how can I keep them short? thanks for the help!