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Do these burnt edges look like heat stress or a nutrient issue?

zawcazstarted grow question 3y ago

I noticed this browning on the edges of two fan leaves this morning. The affected leaves were right next to the space heater that runs all night (cold basement!), so I *think* it’s probably heat burn/stress. But don’t want to ignore a potentially more serious issue. Thanks!

zawcaz

zawcaz

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Leaves. Edges burnt

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GrowingGrannieanswered grow question 3y ago

I'd keep my eye on them, tbh... it certainly COULD be from the heater but it might also be the beginnings of a phosphorus deficiency.... I don't see any pH information or nute information in your diary - but you need to keep the pH between 6.0 and 6.5 for a soil grow... Good luck! Nice looking jungle so far! :-D Did you decide to keep all of them going? Hope so!

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