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Calcium or magnesium deficiency?

SeedlockHolmesstarted grow question 4y ago

Cal mag def? Photo of new growth affected:

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Leaves. Color · Yellow

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Hashyanswered grow question 4y ago

Looks like magnesium to me.

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HerbalEduanswered grow question 4y ago

Yup, it does looks like first sgin of magnesium deficiency. https://loudclouds.co/wp-content/uploads/2016/07/marijuana-deficiency-chart-jorge-cervantes.jpg

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Organomananswered grow question 4y ago

Yep, I agree, magnesium deficiency. Top dressing your pots with a small handful of souble magnesium sulphate powder should cure this. Generally available from any good garden centre. Just water it in after application, simple.

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