Veins turning yellow, leaves curling and strange leaves on the top.

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algriffon

Member
Hey guys !

i am posting this thread cause i am starting to get real struggles with some beautiful girls of mine... There are 2 plants in one big pot, both in mid-flowering and it has been a week and a half or so since some veins started to turn yellow as you can see on the pictures below. in addition to these yellow veins, the leaves that are (because not all of them are turning yellow but it is "spreading"), start to be fragile and curved...
Then, it may be because of my beginner level that doesn't allow me to recognize it but you will see the uppermost leaves are growing a lot in a really weird way...

would you have any idea of what may be going on (everything went alright with their growth before that except a slight "windburn" couple of months ago cause i took them outside for a too windy day.) ? i suspect it is nutrient related but i am not sure and don't know which one... If it is, what could i do ? it is the first time (this is my 3rd growth) where i have "important problems" with my plants and i would really not like to lose them or my harvest now...

thanks for your help ! :)
 

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hotrodharley

hotrodharley

Well-Known Member
Appreciate the pictures in good light and of the whole plant. But just a wee bit closer showing the problem you’re concerned about.
 
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algriffon

Member
hotrodharley said:
Appreciate the pictures in good light and of the whole plant. But just a wee bit closer showing the problem you’re concerned about.
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someone told me before that it may be calcium/magnesium deficiency, but from what i saw on internet (pictures mostly), it doesn't look quite like it... the guy told me to ask for another opinion. do you think it could be this or even the matter the pot is made of ?
 
hotrodharley

hotrodharley

Well-Known Member
algriffon said:
someone told me before that it may be calcium/magnesium deficiency, but from what i saw on internet (pictures mostly), it doesn't look quite like it... the guy told me to ask for another opinion. do you think it could be this or even the matter the pot is made of ?
Click to expand...
It doesn’t matter about the pot. Oftentimes plastic or hard containers don’t really promote good drainage and aeration so root problems occur more frequently. Hi easier to overwater in them.

I can’t see the problem in the leaves you’re concerned about. Pictures don’t enlarge enough for old eyes.
 
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algriffon

Member
hotrodharley said:
It doesn’t matter about the pot. Oftentimes plastic or hard containers don’t really promote good drainage and aeration so root problems occur more frequently. Hi easier to overwater in them.

I can’t see the problem in the leaves you’re concerned about. Pictures don’t enlarge enough for old eyes.
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look at the other pictures i just posted and tell me if you can see better... and anything i can do about a potential root problem ? (the plant doesn't seem to be overwatered... the yellow leaves are kinda "breaky" but it might have to do with roots thoug.
 
hotrodharley

hotrodharley

Well-Known Member
algriffon said:
look at the other pictures i just posted and tell me if you can see better... and anything i can do about a potential root problem ? (the plant doesn't seem to be overwatered... the yellow leaves are kinda "breaky" but it might have to do with roots thoug.
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You said roots too. You’re on it I believe. No idea how or what but it’s roots. Can you transplant?
 
hotrodharley

hotrodharley

Well-Known Member
You can use a large reusable shopping bag. Those things usually work great. Strong as hell. Get some nutrient free potting soil and transplant. Your present nutes are fine.
 
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Wanderer1

Active Member
From my experience having dark green fans, odd new 3-4 petal leaves along with odd vein color or spots has been too much fertilizer. Basically it seemed that plants were getting to much N for the stage of growth. PH for sure should be eliminated as a causation. I have found that a transplant can be helpful too, allowing a kind of "reset". Total bro science based on limited experience. Good luck man, ill be reading for others opinions too.
 
Highlife42

Highlife42

Well-Known Member
algriffon said:
those are plastic pots. why can it actually hurt the plant ??? i think i grew my previous plants in both plastic pots and clay...
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Its not the pots. Its the drainage and lack of oxygen im concerned about that may have led to your issues. From my looks- You locked out P&K due to toxicity. Which led to excess of micro-nutrients locking out Macro production.

IMO- Chloride toxicity; which is essential for O2 production.. Iron toxicity; which regulates Nitrogen reduction/fixation(light golden/bronze look). And I think a shortage of calcium/magnesium is deficient which is important for heat stress on newer fan leaves and the usage of Iron. I believe you have root zone issue. Too compact/overwatered down below causing root rot. Basically the plant is suffocating. Hope this helps. Get others opinions though please. Happy growing sir
 
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algriffon

Member
A big thank you to you all ! i am going to change the pot and get some clean and fresh soil this week-end. although i am a bit worried about the impact on harvest and all...
One more question : i had a very poor ventilation in there (which i changed today). i thought that it would not matter much, but could it be the cause, or part of all these problems ?
 
Jjgrow420

Jjgrow420

Well-Known Member
Highlife42 said:
Its not the pots. Its the drainage and lack of oxygen im concerned about that may have led to your issues. From my looks- You locked out P&K due to toxicity. Which led to excess of micro-nutrients locking out Macro production.

IMO- Chloride toxicity; which is essential for O2 production.. Iron toxicity; which regulates Nitrogen reduction/fixation(light golden/bronze look). And I think a shortage of calcium/magnesium is deficient which is important for heat stress on newer fan leaves and the usage of Iron. I believe you have root zone issue. Too compact/overwatered down below causing root rot. Basically the plant is suffocating. Hope this helps. Get others opinions though please. Happy growing sir
Click to expand...
this is def on the right track me thinks
 
Jjgrow420

Jjgrow420

Well-Known Member
algriffon said:
A big thank you to you all ! i am going to change the pot and get some clean and fresh soil this week-end. although i am a bit worried about the impact on harvest and all...
One more question : i had a very poor ventilation in there (which i changed today). i thought that it would not matter much, but could it be the cause, or part of all these problems ?
Click to expand...
how hot did it get
 
hotrodharley

hotrodharley

Well-Known Member
algriffon said:
A big thank you to you all ! i am going to change the pot and get some clean and fresh soil this week-end. although i am a bit worried about the impact on harvest and all...
One more question : i had a very poor ventilation in there (which i changed today). i thought that it would not matter much, but could it be the cause, or part of all these problems ?
Click to expand...
Break up any root balls. Rinse in lukewarm water if possible. Transplant.
 
Killaki

Killaki

Well-Known Member
You definitely have issues with the uptake of nutrients, but that can of worms aside- your first pic looks like that plant is reveg'ing. I zoomed in to the area, and I assume it's what you mean by weird growth. Any light leaks or timer malfunctions? Anything causing light exposure during the dark period?
As for the rest of this, two plants in the same container is asking for trouble, the tin foil can cause heat stress, and the soil is problematic. Seems others have pointed you in a decent direction. Just wanting to point out what I noticed here.
 

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