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Is this heat stress? Young White Widow
Wontgiveupstarted grow question 4 years ago
Hey fellow gardeners,
Is this young White Widow showing signs of heat stress?
With lights on, my tent is a constant 26-28 C (79 - 83 F) and RH is 64%-74%.
And I do trust my sensors.
Mars Hydro TSW2000 turned down to ~40% intensity. Light was ~ 10” from leaves. Growing in coco.
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Organomananswered grow question 4 years ago
I wouldn't worry about it, Cannabis plants can grow strange leaves at times, but I would try 24 inches at 75% as a first option to see if that helps, if you are really worried about the leaves.
Wontgiveupanswered grow question 4 years ago
@smoke24
MH recommends 24” for veg for that light but they also give measurements for PAR readings at different heights, and I mentioned I am at 40% intensity (because of high temps when running the light at 100%) which is why I was lowering the light.
When I had it at 35-40%, at 24” my WW was stretching....
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MrGreenMananswered grow question 4 years ago
Definitely light way too close, go with Smoke24’s advice!
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smoke24answered grow question 4 years ago
10 inches is too close for that light, better off at 24 inches for that stage of growth. Happy growing.
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bigbud1080answered grow question 4 years ago
Looks like heat stress or a nutrient toxicity, could be nitrogen.
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