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Yellowing Leaves
FishOilstarted grow question 3 years ago
I'm concerned my plant may be prematurely yellowing. I've added Cal-Mag to see if that would help with the yellowing of leaves, but the issue persists. Yellow leaves are moving progressively higher up the plant, but my other strain is not presenting same problem. (See Post)
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GMSgrowsanswered grow question 3 years ago
Some strains like a little more nitrogen in flower than others. Adding a little cal/mg which is high in nitrogen should of helped some, but after 4 or 5 weeks of flowering it is normal for her to start pulling her nitrogen needs from the leaves. By the end of my grows I have leaves the drop off with a touch of the finger. Unless all the sugar leaves start doing the same thing, I wouldn't worry to much. Cheers
InspireMeanswered grow question 3 years ago
Most cal mags I know of contain nitrogen. My advanced nutrients cal mag is super high 4-0-0.
It's worth checking yours before using it.
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Ezzjaybruhanswered grow question 3 years ago
Most popular cal mag supplements do have some Nitrogen content.
GH’s has 1-0-0 NPK
Botanicare’s has 2-0-0 NPK
Athena’s has 2-0-0 NPK
Not trying to step on toes Organoman, you’ve helped me out plenty but I always see a low N rating on most commercial cal mag supplements.
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Organomananswered grow question 3 years ago
Cal/mag contains calcium and magnesium, and no nitrogen at all.
If you are concerned with the yellowing, adding some nitrogen to your feeding schedule will help and this can be as simple as giving half grow and half bloom nutrients a couple of times, instead of just straight bloom nutrients.
Different plants will have different requirements, so what may be fine for one could be either too much or too little for another plant.
Even two plants of the same strain can have different requirements.
Hope this helps, Organoman.
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