Leaf Curl. What’s going on?

I have 10 plants going of the same strain and only 1 of them is exhibiting this weird leaf curl and it’s also the biggest plant of them all. Anyone know what this is? I’m growing in organic soil. They aren’t over or under watered either.

Just pheno I think. 2 of 3 of my Cookies have this massive skinny fingered fan leaves that droop. seems to perk up a bit as the leaf gets bigger.

kingtitan said:

Just pheno I think. 2 of 3 of my Cookies have this massive skinny fingered fan leaves that droop. seems to perk up a bit as the leaf gets bigger.

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Very odd but plausible. Just sucks that she’s the biggest girl out of the 10. I’d have kept a clone of her if her leaves weren’t screwey.
Thanks for your insight brother

i see a bit of burn, nothing bad though. It could just be a pheno thing, but it could be from being rootbound if its your largest plant. some bugs can also cause this type of damage, my plants looked very similar after root aphids annihilated their roots.

Gumdrawp said:

i see a bit of burn, nothing bad though. It could just be a pheno thing, but it could be from being rootbound if its your largest plant. some bugs can also cause this type of damage, my plants looked very similar after root aphids annihilated their roots.

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It’s definetly not root bound. It’s only 6 weeks into veg in a 5 gallon fabric pot. The only thing I see is an odd leaf curl. And no bugs whatsoever. I’m hoping she flowers fine.

GrowGorilla said:

I have 10 plants going of the same strain and only 1 of them is exhibiting this weird leaf curl and it’s also the biggest plant of them all. Anyone know what this is? I’m growing in organic soil. They aren’t over or under watered either. View attachment 4035064

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You may have a potassium deficiency advancing. Not enough potassium uptake will create tall weak plants.

I have not seen it to that degree in veg in person but a stretching flowering plant can get those crinkles in my experience and they go away with a higher dose of fertilizer. Or a leaching of the pot and a lesser dose depending on the circumstances.

There may be other nutrients affected at this point. I would recommend a mild leaching to good runoff to clear out excess salts or nutrients and add back a mild dose of a balanced complete Grow fertilizer.

And hurry up and wait. .

For some improvement I mean.

MichiganMedGrower said:

You may have a potassium deficiency advancing. Not enough potassium uptake will create tall weak plants.

I have not seen it to that degree in veg in person but a stretching flowering plant can get those crinkles in my experience and they go away with a higher dose of fertilizer. Or a leaching of the pot and a lesser dose depending on the circumstances.

There may be other nutrients affected at this point. I would recommend a mild leaching to good runoff to clear out excess salts or nutrients and add back a mild dose of a balanced complete Grow fertilizer.

And hurry up and wait. .

For some improvement I mean.

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This is organic super soil. All the amendments were added at a rate of 1/2 cup per cubic foot. My base soil is 30% Peat, 30% Earth Worm Castings and 40% Perlite. It should be fine.. There are no access salts or nutrients to leech out.
Thanks for your insight either way though.

GrowGorilla said:

This is organic super soil. All the amendments were added at a rate of 1/2 cup per cubic foot. My base soil is 30% Peat, 30% Earth Worm Castings and 40% Perlite. It should be fine.. There are no access salts or nutrients to leech out.
Thanks for your insight either way though.

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Well you didn't mention that up front but your plants are still not getting the potassium they need from the balance of available nutes in the soil.

Maybe topdress some organic fertilizer with potassium?

MichiganMedGrower said:

Well you didn't mention that up front but your plants are still not getting the potassium they need from the balance of available nutes in the soil.

Maybe topdress some organic fertilizer with potassium?

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What would you recommend top dressing with? Just odd that this is the only one with this weird leaf curl out of 10

I had that happen just like that. And I almost culled it. I ended up giving it a good flush. 5 gallon smartpots. I run 25 gallons of water through it. Until I had good ph in my runoff. From built up salts. I've noticed that smartpots tend to hold salt in their fabric as they dry. And then re-release it when watered again. Which caused nute lock out. Good luck with it.

GrowGorilla said:

What would you recommend top dressing with? Just odd that this is the only one with this weird leaf curl out of 10

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Sorry not sure what to recommend. I grow many different strains at different stages perpetually and mix and feed what each plant needs individually to avoid this sort of thing.

I use only ocean forest, perlite and well water through 5-6 weeks veg for almost every plant. They don't need more nutrients when they are young than regular potting soil offers.

I would still leach that pot with fresh water to good runoff and wait to see improvement. Maybe the fresh water will reset things.

GrowGorilla said:

What would you recommend top dressing with? Just odd that this is the only one with this weird leaf curl out of 10

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Was it always different from the others or did the problem appear recently?
Did you recently transplant to the 5 gal?

MichiganMedGrower said:

Sorry not sure what to recommend. I grow many different strains at different stages perpetually and mix and feed what each plant needs individually to avoid this sort of thing.

I use only ocean forest, perlite and well water through 5-6 weeks veg for almost every plant. They don't need more nutrients when they are young than regular potting soil offers.

I would still leach that pot with fresh water to good runoff and wait to see improvement. Maybe the fresh water will reset things.

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Maybe I’ll try getting 5 gallons through her tonight. It can’t hurt

Buba Blend said:

Was it always different from the others or did the problem appear recently?
Did you recently transplant to the 5 gal?

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They’ve been in the 5 gallons for about 5 weeks. It’s always looked a little different then the rest

GrowGorilla said:

They’ve been in the 5 gallons for about 5 weeks. It’s always looked a little different then the rest

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Looks like start of magnesium deficiency to me. Bit of interveinal chlorosis going on there too..

I had this on one of my ladies which was cured with epsom salts.

More nitrogen requires more magnesium, since that plant is growing fast than the rest it's using nitrogen more quickly, if the Mg isn't there this happens

Nutty sKunK said:

Looks like start of magnesium deficiency to me. Bit of interveinal chlorosis going on there too..

I had this on one of my ladies which was cured with epsom salts.

More nitrogen requires more magnesium, since that plant is growing fast than the rest it's using nitrogen more quickly, if the Mg isn't there this happens

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So give her some epsom salt? How much per gallon?

GrowGorilla said:

So give her some epsom salt? How much per gallon?

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1-2tbsp depending on age... I went for 2tbsp on my 2month old plant.

Also, I believe copper deficiency causes the leaves to grow thin and contorted.

need mor pics

Nutty sKunK said:

1-2tbsp depending on age... I went for 2tbsp on my 2month old plant.

Also, I believe copper deficiency causes the leaves to grow thin and contorted.

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I’ll leech her then give her the epsom salt watering right after.