Leaves Curling And Its Causes...What ?

Gardeneer · May 8, 2017

I have heard about and seen this before.
Mostly mature leaves curl or roll like a cigar, in a tubular shape.
One year I had a Black Krem that had such curing leaves all season long.
But right now in my garden there are half a dozen or more varieties( out of 34 varieties ) having curled leaves.
Any comment is appreciated.

Spartanburg123 · May 8, 2017

My Black Krim did it as well last year. And my Big Zac. It didn't seem to affect anything, they grew just fine. I assume the reduction in solar surface area might slow down the overall growth of the plant, but not a degree that is noticeable.

None so far for me this year, but one of my Sgt. Peppers has a little curly to it.

KarenO · May 8, 2017

Stress causes leaf rolling. Dry, wet, hot,cold, bearing a lot of fruit, not a big deal usually, try to help out with correct and even moisture, mulch well, pick ripening fruit to allow the plant some resources to give less developed fruit. Fertilize regularly and prune off any spotty or diseased foliage.
KarenO

RayR · May 8, 2017

It's called Physiological Leaf Curl or Physiological Leaf Roll.
Google that and read all about it

**carolyn137** · May 9, 2017

Quote:

Originally Posted by RayR

It's called Physiological Leaf Curl or Physiological Leaf Roll.
Google that and read all about it

Yes, physiological Leaf Curl is one explanation, several others here have cited other reasons as well,and good to know that many hybrids have leaves that curl/roll normally.

In my experience leaf curling occurs mainly early in the season, and that b/c growth above the soil is outpacing root growth.

When top and root growth are in sync,it goes away.

When leaves curl up into an actual tube, look for aphids.

Carolyn

Worth1 · May 9, 2017

Learn something new every day and here I thought the plants had just came back from the beauty shop.

zipcode · May 10, 2017

I found that these old rolled leaves are usually quite resistant to 'things'. Spider mites definitely don't touch them. Sometimes at the end of the season the oldest rolled leaves are the best looking ones on the plant.
I think nutrition also plays a role. Still not sure I know which element, but it's definitely a relation. Since adding more micronutrients I get it in way less quantity.

May 8, 2017	#1
Gardeneer Tomatovillian™ Join Date: Feb 2015 Location: NC - zone 8a - heat zone 7 Posts: 4,916	Leaves Curling And Its Causes...What ? I have heard about and seen this before. Mostly mature leaves curl or roll like a cigar, in a tubular shape. One year I had a Black Krem that had such curing leaves all season long. But right now in my garden there are half a dozen or more varieties( out of 34 varieties ) having curled leaves. Any comment is appreciated. __________________ Gardeneer Happy Gardening !

May 8, 2017	#2
Spartanburg123 Tomatovillian™ Join Date: Jun 2014 Location: Spartanburg, SC Posts: 1,262	My Black Krim did it as well last year. And my Big Zac. It didn't seem to affect anything, they grew just fine. I assume the reduction in solar surface area might slow down the overall growth of the plant, but not a degree that is noticeable. None so far for me this year, but one of my Sgt. Peppers has a little curly to it.

May 8, 2017	#3
KarenO Tomatovillian™ Join Date: Oct 2012 Location: Vancouver Island Posts: 5,929	Stress causes leaf rolling. Dry, wet, hot,cold, bearing a lot of fruit, not a big deal usually, try to help out with correct and even moisture, mulch well, pick ripening fruit to allow the plant some resources to give less developed fruit. Fertilize regularly and prune off any spotty or diseased foliage. KarenO

May 8, 2017	#4
RayR Tomatovillian™ Join Date: Jun 2010 Location: Cheektowaga, NY Posts: 2,466	It's called Physiological Leaf Curl or Physiological Leaf Roll. Google that and read all about it

May 9, 2017	#6
Worth1 Tomatovillian™ Join Date: Feb 2006 Location: Den of Drunken Fools Posts: 38,539	Learn something new every day and here I thought the plants had just came back from the beauty shop.

May 10, 2017	#7
zipcode Tomatovillian™ Join Date: Jun 2010 Location: Romania/Germany , z 4-6 Posts: 1,582	I found that these old rolled leaves are usually quite resistant to 'things'. Spider mites definitely don't touch them. Sometimes at the end of the season the oldest rolled leaves are the best looking ones on the plant. I think nutrition also plays a role. Still not sure I know which element, but it's definitely a relation. Since adding more micronutrients I get it in way less quantity.