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What leaf problem am I dealing with?

Clutch
Clutchstarted grow question 3 years ago
FanLeaves are turning black from the inside to outside. It's looking like a starting problem. Please help me recognize this 🙂 first picture (leaf on the bottom shows it best)
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Leaves. Color - Black or grey
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Roberts
Robertsanswered grow question 3 years ago
I think it was cold rain and it was just enough it stressed them a bit. Usually black or purple is a sign of too chilly. If roots get too cold it can do this as well. Like a dwc set up. My bet from what I know is cold. Only time I see this unless it is fading.
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Clutch
Clutchanswered grow question 3 years ago
I made a new question with some better pictures. It looks like more then rain or cold problem. Please check it out 🙂 thanks for the response guys
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Roberts
Robertsanswered grow question 3 years ago
If the night temps get too cold it will cause plants to turn a black or purple color. If they got cold then that was the problem. If so they will recover but leaves won't fix themselves. Good luck 🌱🌱🌱
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Aquemini
Aqueminianswered grow question 3 years ago
Then it would be from the rain and it drying out. You shouldn't have anything to worry about. Just watch out for mold or mildew, but if its drying up everything should be ok.
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Clutch
Clutchanswered grow question 3 years ago
No I'm growing outdoors and the weather is like 21 °Celsius. I'm not overwatering but she did have some rain the last days.
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Aquemini
Aqueminianswered grow question 3 years ago
Are you in high heat? That moisture stress and can also happen from heat stress if the environment changes quickly
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