Some times leaves yellowing from the bottom signal oxygen deficiency in the soil. This happens when the soil (or coco) stays wet for too long. The plant can not take in oxygen from the soil. Let the soil dry out, try to loosen up the soil to introduce some air.
Shovelhandle Reviewed by Shovelhandle on . Please examine pictures and help! !!! Thank you!! Hey guys. I'm in the vegging stage with diamond dream og in coco grow and the leaves have been showing these symptoms for the past week. I flushed them, and only fed them water and cal-mag (I think its a calcium deficiency) but they show no signs of improvement. Somebody please help!! Rating: 5