Curling Leaves

[orangejuice]

Im in the 4 week of flowering under 1/1000 watt HPS and i noticed the new smaller leaves near buds are curling but all the other older fan leaves show no sign of any defects. Any one know why i am having curled leaves.


THanks.

 

[orangejuice]

Here are some pictures of the curling leaves I have. I know its not overwatering because my last crop I had an overwater problems and the signs/curling are different. Just the new smaller leaves near bud sites are curling; were as the larger fan leaves are straight, no yellow, no brown, just green and healthy looking.

Got 1 dozen plants under 1/1000 HPS.
4th week in flowering.
Ebb& Flow
Feeding OPEN SESAME dry.


Thanks for any replies.

 

[UKgirl420]

hows your ph ?

 

[blancolighter]

From what I can see it looks like the leaves that are curling are kinda in the shadow area of other leaves and not getting direct light. I know this can make leaves droop and curl, but I can't really tell if this is the case for you...

 

[godspeedsuckah]

I am with ukgirl on this one, look's like a ph issue either with your water or in your soil.

 

[smokingjoe]

Ph or lack of dissolved oxygen in the water.

Do you have an air stone in your res?

 

[andy52]

as stated above,ph is a very important factor.i make dang sure my ph is dead on,at all times.

 

[TBuds]

Is the leaf curl up or down? Hood aircooled? Light to close to canopy, ventilation

 

[orangejuice]

the leaves are curled down, length-wise.

 

[orangejuice]

Ph is at 5.5/no soil. dry clay.

 

[bluealein56]

soil dry?

 

[nvthis]

Lengthwise, like curled? Or twisted?

Sorry, you probably mean along the leaf margin?

Nm, just caught your other post..

 

[Growdude]

How much of the open sesame are you using? thats strong stuff, Soluble Fertilizer (5-45-19)

 

[smokingjoe]

I'm not sure on the soil pH but can't imagine much different to hydro; shouldn't you pH be high 6's to early 7's at the highest?

 

[Type_S150]

I'm not sure on the soil pH but can't imagine much different to hydro; shouldn't you pH be high 6's to early 7's at the highest?

Umm no. Soil should be mid 6, hydro is like 5.6-5.8 or something i think.

 

[iiii]

as stated above,ph is a very important factor.i make dang sure my ph is dead on,at all times.

And what is an appropriate pH for Flowering plants, Andy?....

 

[godspeedsuckah]

I like to keep my soil ph around 6.5 - 6.8. It varies a little bit but not much. It really does look like a ph issue; 5.5 in soil is too low. If it was over fertilization your leaf tips should be curling like claws as well and I don't see that in your pictures.

 

[Budster]

i agree that there is a ph problem as was said soil should be over 6 and below 7 as optimum. hydro 5.5. i would not know about clay.

 

[Budster]

i would like to add that it should not be a problem at this stage.

 

[hairchick40v]

My leaves are curling a bit too... I thought it could be I haven't fert. in a week or so... With Holidays, I am suprised I got the lights on and off like I was suppossed too... And my big plant is beside the light instead of under it...

As with everything in my life, I have gotten ahead of my facilities... I live in a constant game of catch up!!!

Could these factors cause MY curling????

ie: constant veg since october...waiting for better light set up to bud... workin in soil... PH???