Noticed some leaves were yellowing today and not sure if it's Magnesium deficiency or Nitrogen deficiency. I also noticed a couple brown spots as well. I was thinking Mag as shes yellowing and has red stems and from what I read this is a sign of Mag deficiency. And Ive grown this strain recently and she had green stems all thru flower.
It could just be that you’re getting into flower mode and with Cannabis being an annual plant its nearing the end of its life cycle. It happens and isnt a bad thing. Whole plant pictures would help vs just the lower areas that are slowly yellowing. Having dark green plant growth right thru the end of flowering isn’t always a good thing. Its just not natural but is forced via modern strong fertilizers. j
I was thinking it was starting to fadd but the plant is only Week 4 or 5 of bloom and buds still haven't swelled yet so I dont think shes near yet.