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Leaves turning yellow
findoutmorestarted grow question 3 months ago
Hi guys, my plants upper leaves turned a bit much yellow over the weekend! The structure of the leaves is unaffected! I’m wondering if I was over feeding or if the switch to the mars hydro ts1000 resulted in heat/light stress! Happy about any reply/information :)!!
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Leaves. Color - Yellow
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Organomananswered grow question 3 months ago
Looks like a combination of a magnesium deficiency and stress caused by growing for 12 weeks already at 24/0 and not getting any "sleep".
ALL cannabis plants NEED "sleep" for a correctly functioning metabolism and to finish their daily photosynthesis cycle.
A plant with an incorrectly functioning metabolism will never grow at peak health or to its fullest potential.
18/6 is optimal.
The MYTH that it is ok to grow cannabis for weeks/months without "sleep" is the biggest error in the cannabis cultivation world.
Nothing can be healthy without "sleep" or a rest period every day.
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Miltyanswered grow question 3 months ago
What's the soil ph? Check to make sure the soil ph is ok. Are you growing in coco? May need CalMag, it won't hurt to add a little and see what happens.
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