Upward curl

GrischaBXLstarted grow question 5y ago

Hi Breeders, Elizabeth is growing well, but the bigger leaves are curling up at the edges. I already increased lamp hight and lowered to 18/6. Is it air humidity? Or too much water?

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Leaves. Curl up

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Hempy_The_Kidanswered grow question 5y ago

When leaves curl (taco) it's usually a sign of heat/light stress.

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