Plant curling, mystery problem

Hey all, about 3 weeks ago (when my plants were still in 18/6, probably doesnt matter but documenting it anyway) the leaves on one of my plants began to "curl", I cant really describe it so have a look at the pics. I thought it was a moisture problem and that it would fix itself but it has been like that for 3 months. New leaves will grow and be healthy as they grow but as soon as they are finished growing they curl. I started flowering a week and a half ago and this kinda has me down because after killing off the males its my tallest plant and my only female bubbledelicious so I really would like to save it. It is stunting the growth of the flowers bad, all the other plants have tons of pistils but this one has very few. The PH of the soil is around 6.5 and the "runoff" is around 5-5.5 (the water also had fox farm nutes in it though which are formulated with a low ph), the PH of the water I use is 6.5. This doesnt look like any kind of deficiency or anything and as you can see the rest of my garden looks completely healthy, im stumped. If someone could help me out id be really grateful.

Thanks in advance!!

ajs85 said:

Hey all, about 3 weeks ago (when my plants were still in 18/6, probably doesnt matter but documenting it anyway) the leaves on one of my plants began to "curl", I cant really describe it so have a look at the pics. I thought it was a moisture problem and that it would fix itself but it has been like that for 3 months. New leaves will grow and be healthy as they grow but as soon as they are finished growing they curl. I started flowering a week and a half ago and this kinda has me down because after killing off the males its my tallest plant and my only female bubbledelicious so I really would like to save it. It is stunting the growth of the flowers bad, all the other plants have tons of pistils but this one has very few. The PH of the soil is around 6.5 and the "runoff" is around 5-5.5 (the water also had fox farm nutes in it though which are formulated with a low ph), the PH of the water I use is 6.5. This doesnt look like any kind of deficiency or anything and as you can see the rest of my garden looks completely healthy, im stumped. If someone could help me out id be really grateful.

Thanks in advance!!

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Low humidity, or too much wind or heat?

Low humidity - RH is at 50%, all the other plants are doing fine. Dont think thats it.
Too much wind - its receiving a very very light passive breeze as it has from birth. Just enough to circulate the air through the plants, dont think thats it.
Heat - dont think thats it either, all the other plants are fine and I had males that were much taller than this one and they were fine. I could actually move the lights down a bit if i wanted to since i killed the males but im just waiting for em to grow into it.
Thanks for the ideas but anything else you think it could be? Any bug/disease that causes this?

Green Cross said:

Low humidity, or too much wind or heat?

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ajs85 said:

Hey all, about 3 weeks ago (when my plants were still in 18/6, probably doesnt matter but documenting it anyway) the leaves on one of my plants began to "curl", I cant really describe it so have a look at the pics. I thought it was a moisture problem and that it would fix itself but it has been like that for 3 months. New leaves will grow and be healthy as they grow but as soon as they are finished growing they curl. I started flowering a week and a half ago and this kinda has me down because after killing off the males its my tallest plant and my only female bubbledelicious so I really would like to save it. It is stunting the growth of the flowers bad, all the other plants have tons of pistils but this one has very few. The PH of the soil is around 6.5 and the "runoff" is around 5-5.5 (the water also had fox farm nutes in it though which are formulated with a low ph), the PH of the water I use is 6.5. This doesnt look like any kind of deficiency or anything and as you can see the rest of my garden looks completely healthy, im stumped. If someone could help me out id be really grateful.

Thanks in advance!!

Click to expand...

Some plants just do this. Don't worry about it unless it affects flowering.

mine did this a few days after i gave them nutes, did you just feed them?

Like i said its my only fem bubbledelicious so maybe that is why it is like that. It does seem to be stunting the flowering though as all the other plants have alot of pistils and this one seems to have hardly any.

Edit: to the guy above me, the plant has been like this for 3 weeks, its not from just feeding it. I have been watering with just water and foliar feeding some light budding nutes for about a week to flush some of the salts out and prepare for watering with budding nutes.

doc111 said:

Some plants just do this. Don't worry about it unless it affects flowering.

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ajs85 said:

Like i said its my only fem bubbledelicious so maybe that is why it is like that. It does seem to be stunting the flowering though as all the other plants have alot of pistils and this one seems to have hardly any.

Edit: to the guy above me, the plant has been like this for 3 weeks, its not from just feeding it. I have been watering with just water and foliar feeding some light budding nutes for about a week to flush some of the salts out and prepare for watering with budding nutes.

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If you are really concerned about it maybe try doing a soil test. Also a wetting agent might be a good idea to use when watering because sometimes the soil dries out so much it won't absorb moisture evenly and the water may only be getting to the top of the root mass. You could also try flushing. I don't recommend flushing unless it's an emergency but if it is really bothering you these may be things worth considering.

Thanks for the advice but I already mentioned the PH of the soil (not from a soil tester, a quality PH tester using the soil mixed with a bit of 7.0 water). The soil is the same in every pot (many of them) and all plants are healthy as mules except this one. It always drains out the bottom and I make sure i water evenly. Plus i pulled the pot off gently and there is no root rot or anything i can see that is wrong with the roots.
I dont think ill flush unless the thing takes a turn for the worse or something, but like I said im already doing a pre-budding "flush" feeding only with water for 3 or 4 waterings. Sorry for shooting down everyones theories but im really stumped

doc111 said:

If you are really concerned about it maybe try doing a soil test. Also a wetting agent might be a good idea to use when watering because sometimes the soil dries out so much it won't absorb moisture evenly and the water may only be getting to the top of the root mass. You could also try flushing. I don't recommend flushing unless it's an emergency but if it is really bothering you these may be things worth considering.

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low humidity

ajs85 said:

Thanks for the advice but I already mentioned the PH of the soil (not from a soil tester, a quality PH tester using the soil mixed with a bit of 7.0 water). The soil is the same in every pot (many of them) and all plants are healthy as mules except this one. It always drains out the bottom and I make sure i water evenly. Plus i pulled the pot off gently and there is no root rot or anything i can see that is wrong with the roots.
I dont think ill flush unless the thing takes a turn for the worse or something, but like I said im already doing a pre-budding "flush" feeding only with water for 3 or 4 waterings. Sorry for shooting down everyones theories but im really stumped

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I meant an NPK test, not pH.

All ur plants have some similar signs, what do u mean they are fine?. That may be your worst one, but the others are close behind. It has to be something environmental. Did u say ur runoff ph is 5-5.5? Thats pretty low for soil if Im not mistaken. Id get that straight. U say that u use water that is 6.5, and ur soil is PH'd at 6.5, but u get a runoff at 5... I call bullshit.
Give us some accurate info and we can help u. U are shooting sown ideas like a marksman, but u dont even have your shit straight.

Phelps: I didnt know he was talking about an NPK test. Also, are you saying im lying about the runoff?? I dont know WHY my runoff is so much lower than my soil and my tap water but like i already mentioned the runoff wasnt from ordinary tap it was water with foxfarm nutes which are formulated with low PH. I can take photos if youd like, i dont know why you think im lying about the PH id like to get this problem solved. I dont see any curling at all in my other plants. They seem to be doing just fine.

Phelps said:

All ur plants have some similar signs, what do u mean they are fine?. That may be your worst one, but the others are close behind. It has to be something environmental. Did u say ur runoff ph is 5-5.5? Thats pretty low for soil if Im not mistaken. Id get that straight. U say that u use water that is 6.5, and ur soil is PH'd at 6.5, but u get a runoff at 5... I call bullshit.
Give us some accurate info and we can help u. U are shooting sown ideas like a marksman, but u dont even have your shit straight.

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ajs85 said:

Hey all, about 3 weeks ago (when my plants were still in 18/6, probably doesnt matter but documenting it anyway) the leaves on one of my plants began to "curl", I cant really describe it so have a look at the pics. I thought it was a moisture problem and that it would fix itself but it has been like that for 3 months. New leaves will grow and be healthy as they grow but as soon as they are finished growing they curl. I started flowering a week and a half ago and this kinda has me down because after killing off the males its my tallest plant and my only female bubbledelicious so I really would like to save it. It is stunting the growth of the flowers bad, all the other plants have tons of pistils but this one has very few. The PH of the soil is around 6.5 and the "runoff" is around 5-5.5 (the water also had fox farm nutes in it though which are formulated with a low ph), the PH of the water I use is 6.5. This doesnt look like any kind of deficiency or anything and as you can see the rest of my garden looks completely healthy, im stumped. If someone could help me out id be really grateful.

Thanks in advance!!

Click to expand...

hey man.i think you should try to swich the air from the room with fresh one more often.if you have the posibillity to do it at night when the air is much more fresh ,better!try co2 tabs or co2 in the air .try to fan from outside in and from inside out.it will help if you flush and start your feeding program again.it is not normal for them to look like that so early .i had the same problem and i still have it but if i flush 3 times it get's back to normal.i get this because i feed all my plants the same e.c .probably some need more and some less.that's bad i know but it works out in time

Thanks peanut, I guess i will give at least the worst one a proper flush. What is wrong with the others? they look fine to me. What do you mean by so early? look like what, the one plant does? I still dont see any signs of anything wrong in the others, am i blind

oh yeah - its a huge room with alot of air and the door is left open at all times to a 3 floor house with a window almost open or an AC or 2 almost always on. The temp in there is always good and the air always seems nice and fresh, the plants have thrived in this environment until this one.

the honey peanut said:

hey man.i think you should try to swich the air from the room with fresh one more often.if you have the posibillity to do it at night when the air is much more fresh ,better!try co2 tabs or co2 in the air .try to fan from outside in and from inside out.it will help if you flush and start your feeding program again.it is not normal for them to look like that so early.hurry up!!u can begin by flushing .

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ajs85 said:

Thanks peanut, I guess i will give at least the worst one a proper flush. What is wrong with the others? they look fine to me. What do you mean by so early? look like what, the one plant does? I still dont see any signs of anything wrong in the others, am i blind

oh yeah - its a huge room with alot of air and the door is left open at all times to a 3 floor house with a window almost open or an AC or 2 almost always on. The temp in there is always good and the air always seems nice and fresh, the plants have thrived in this environment until this one.

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i forgot to ask!How big are your pots?is it posibble that they ask for more terra?im curious of your flush result in few days.you should see the first results at the first leafes from the top of your plants.sometimes i think to myself that a mj plant is divided in two (upper and lower)if the upper part looks fine and stiff than you should not worry much about the lower.that lower part is the old side of your plant and it will always react starnge to lacks or too much nute ,light ,or humidity.sorry about not paying attention ,the other plants look good youre right!!

It sounds to me it has something to do with the soil, i know you said you tested the ph by mixing it with 7.0 water and testing it, but wouldnt that just bring the waters ph down while u add more soil to it.. so if your soil was like 5 ph and you added 1/2 5 ph soil and 1/2 7.0 ph water and mixed it then tested it would be ph 6

im not sure if it works like that but im just guessing.

best way to be sure is to go out and buy an actual soil ph tester because that from what ive read seems to be the only weird thing in the info u gave us.. with the run-off water coming out at 5.5ish ph it just doesnt add up

what water schedule are you having at the moment?try to water more often but with smaller quantitties .i water once @36 hrs(once morning once evening)and its perfect.i remember ,when i was feeding once @ 2 days i also had your problem but now everything looks preatty stiff except the harvest aproach ones

Can I help?
I'm one of the owners of a family based greenhouse as well as a grower of the herb, maybe I can help?

Sounds like leaf roll.

Leaf Roll is a physiological problem which in most causes are environmental.
Leaves curl when it's too wet, too dry, too cool, too hot, too windy, or when the plant has a heavy flower burden.

If leaves curl over into a tube like structure, check for aphids.

Leaf roll can occur at any time while physiological leaf roll usually occurs early when the plants are still immature.

I think phelps was accidentally looking at the leaves of the affected plant thinking they were my other plants. My others are completely healthy, i have scrutinized them up and down. Also, I only mix in just ennough water so that my PH tester works and also use a soil tester and get about the same result (the soil tester is just less accurate but it seems to be accurate in this case). My watering schedule is every 3 days or so or when the top 3" of the soil is dry or if the plants are showing symptoms of underwatering. Once every 3 weeks or so I let them dry out until the plants show symptoms of underwatering to prevent root rot. Oh yeah, the pots are 3 gallon pots. I think the space is sufficient since I have always used these same pots for past grows and they have been fine.
I have come up with a plan to fix this, and have and will be changing several things:
1) I have flushed the plant with 6 gallons of tap water PH 6.5.
2) I have bumped the RH up to 55%.
3) I have stopped misting 15 minutes before I turn the lights on in case the curled plant is extra sensitive or something.
4) I have moved the plant to the back farthest away from the fan


I will report back here in a few days with pics or as soon as I see improvement. Anyone else with any ideas is welcome to contribute too, and phelps, I would still like to know why you think my other plants are following suit, I cant find any evidence of this ?


Edit: oh yeah, how do i look for aphids? Can they be seen with the naked eye or if i need a magnifier what x do i need? Also I think I found the problem. As i was flushing a few mins ago I noticed a drainage issue and found the plant to be pretty root-bound (it didnt look like it was from the outside because it weas only root-bound inside where i couldnt see) so i kneaded the dirt out of the roots and made sure the soil was nice and evenly mixed with the perlite and put it back in. Hopefully that does the trick after it gets over the shock of the flush/root change.

Hippy Girl said:

Can I help?
I'm one of the owners of a family based greenhouse as well as a grower of the herb, maybe I can help?

Sounds like leaf roll.

Leaf Roll is a physiological problem which in most causes are environmental.
Leaves curl when it's too wet, too dry, too cool, too hot, too windy, or when the plant has a heavy flower burden.

If leaves curl over into a tube like structure, check for aphids.

Leaf roll can occur at any time while physiological leaf roll usually occurs early when the plants are still immature.

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You'll know if you have aphids, look under the leaves.
You'll see them.
No need to panic, there are a million remedies for them.
But like you figured out.
They needed more room.

See.................. everything is fine and no need to panic.
There is plenty of help here.

Take Care,