Hi there, I’m very new at this. I grew these Northern Lights Feminized Auto flowering from seed and they’ve been doing great. This week the lower leaves are yellowing how can I save them? They’re about 7 weeks old.
I would leave them on just to see if the problem gets worse and keeps spreading to the rest of plant, they will naturally fall off anyway so I wouldn't bother cutting them off. Hopefully now you have give them a boost of nitrogen the problem won't get any worse