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Grow QuestionsYellow leaf tips and edges

Yellow leaf tips and edges

crusoestarted grow question 4 years ago

Hi I've got a problem that I've seen from the start of my grow and it's getting worse on older leaves now - zoom in edges and tips are turning yellow. I thought it was magnesium so I've dosed with Calmag but it's not improved - I'm Ph6.5 - any ideas?

crusoe

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Leaves. Color - Yellow

Leaves. Color - Mottling

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BraveheartGeneticsanswered grow question 4 years ago

Hi mate, by the way the leaf edges are curling up I would say it is light burn. Maybe lower the intensity of your light or raise it up a few inches till you see improvement. At this stage they don't need full sunlight. around 250 - 400 PAR is perfect. I hope this helps, good luck and happy growing

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