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Is that not enough calcium?

BlueSugarLeafstarted grow question 2y ago

How can I recognise that it is only a calcium deficide? The plant is also the largest and the only one with such deficiencies. Could the plant also be lacking manganese or magnesium and what can I use to compensate for this? Are pests or diseases excluded?

BlueSugarLeaf

BlueSugarLeaf

BlueSugarLeaf

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Leaves. Color - Mottling

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