I have successfully grown Jack Herer autoflowering by a window with a 75 watt COB overhead. I recently purchased Critical Mass CBD seeds and upgraded to a 450 watt LED. I’ve been using Happy Frog potting soil and fertilizer – the same formulas I used for my Jack Herer. LIght was originally about 24 inches from the top of the plant, but I lowered it to about 12-14 as it started to flower. Lighting schedule was 18/6, but just a few days ago I switched it to 12/12 to see if that improves things.
So, here is the Critical Mass CBD at 38 days. It’s flowering, but there are no buds to speak of. I’m about to give up – any thoughts?