Top leaves folding up

Not sure if this is part of the natural growing process but The top leaves of my tomato plants are folding. There is no discoloration of the leaves or much sign of bugs. Outside temps are 60-90 degrees.

See how just the top leaves are folding is that normal?

First off, pretty positive this should be in the gardening Section. But I think your problem is moisture stress on that tomato. I know every year when I start to get hot dry air my tomatos do the same thing. Try misting all the leaves with water a few times bout an hour or two apart and make sure the soil isnt super dry.

Another thing is they need in the ground or @ least a5 gallon container. They are to big for that cup & they are probably drying out to much in that little cup. Tomato plants dream know a lot of water. This looks like after they run out of water for too long & it damages the plant. It will recover but will stunt it for awhile!

what are the temps? heat stress could cause these symptoms.

amjadabas said:

what are the temps? heat stress could cause these symptoms.

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60f at night and low 80's in the day

caveman117 said:

First off, pretty positive this should be in the gardening Section. But I think your problem is moisture stress on that tomato. I know every year when I start to get hot dry air my tomatos do the same thing. Try misting all the leaves with water a few times bout an hour or two apart and make sure the soil isnt super dry.

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The big ones are folding up to and they have plenty of space so I'm thinking your right caveman.
Sometimes I forget what I'm growing ill post in the gardening forums next time .

I thought when the edges of the leaves curl up its the plant curling up is the plant sweating off the heat

Its far too hot...

wizzileaks said:

https://www.rollitup.org/t/plant-moisture-stress-symptoms-and-solutions.150004/

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Yea that could be it too. The plant is either cupping to retain moisture or in response to too much heat. I placed the plants in a spot were there is daylight all day long and no shade so that could very well be it. I just misted them with water and placed them in a better spot that gets shade ill see how they are tomorrow.

If its outside you could cut a large clear bottle, place it upside down above the plant to help with humidity for seedlings/veglings

I doubt its too hot for a tomato plant all mine absolutley go nuts in the heat as.long as they arent thirsty. The only thing I ever notice in the heat is when it is also very dry outand the plant transpires to quickly or not enpugh and the leaves curl and start to ffeel not as soft to the tpuch and more of rubbery texture. It seems to happen more often late in the fruiting phase when the tomatoes are almost all turning red.

But the thing is they aren't curling they are folding.

I didnt mean curling up and down maybe curl was a bad chouce of wording. What I meant was the folding/canoe characteristics.

Edge of the leaves curling is the plant transpiring/sweating because its too hot

Clawing on the tips with possibly light spots in between veins, the veins are still green, normally starts from top down. If same symptoms from bottom upwards is calcium.

Purple stems is a sign of 1 of the npk

Just watched this video seems to explain why they are curling: physiological leaf curl

My plants look really healthy and green no discoloration no abundance of pest and they are growing nicely. I'm glad I learned about physiological leaf curl thanks for all the help guys .

Wizzileaks..you realise that this thread is about tomato plants and not cannabis plants? Because your desceibing symptoms seen in cannabis. Ive never seen tomato plants claw and ive also never had the red stem with them.

Op if you really want to learn more about wjy tomatoes behave the way they do look up info on cultivating the nightshade family and I'm sure youll fins a bunch of interesting info.