Freda Felcher
Well-Known Member
So I have been battling yellowing leaves on my AK-47 plants for over a month. I'm doing a small perpetual grow, or attempting to. Every time my plants go into flowering they start yellowing early on and it slowly moves up the plant. For a while i thought they were lacking magnesium, or had a severe pH imbalance. Yesterday, after noticing more yellowing, i sat down and looked at my plants for a good twenty minutes. I noticed two of them were still very green and lush, with little to no yellowing. After some more examination I noticed the two healthy plants had one big difference. They were a few inches shorter than the other plants when I put them into flower so I have them set on 2x6's. I'm pretty sure the 2x6's are insulating the flower pots from the cold cement floor. So what i think is the roots are too cold and is slowing the plants ability to take in nitrogen. I read about this somewhere. Does anyone have any thoughts on this?