I havent been visiting this site much lately so i have a few questions i recently germenated 3 white rhino seeds, 2 blueberry x honey pot(really good starin), 2 shiva shanti x yzermen(easy to gorw strain) I also have a dutch treat clone and today i got 2 northern lights plants which r ready to be switched over to 12/12 they r abut 3 feet tall, they wree ready to switch a couple weeks ago. My questions are: Could i scrog one of these plants or is it too late? Would a 150w HPS be too weak, i could get stronger but i already have this? Is it too late to start a grow in a greenhouse with my seedlings hopin a few r female? Would temperatures low as 5C hurt the plant?