40 years since first grow
420 Member
My girls are starting to yellow. 3 girls all Durban Poison (sativa) in the same soil ... Pro Mix potting soil. They are about 5-6 weeks old now. They have all been started at the same time. The lower leaves are yellowing. Not sure if it is a nitrogen def at this stage of the game. Other than that I think they appear healthy. I just did a FIM on the 2 bigger ones 4 days ago. Any thoughts?