Leaves Clawing (cause?)

Hi Growers,

Long time lurker, first time poster.

I recently noticed some hard core clawing on the leaves surrounding the buds and have no idea what the problem could be. It's more prevalent on some plants over others. They are all the same strain.

-a little over 2 weeks in flower
-2x600 watt hps
-70-85 degrees
-30% humidity
-silica blast, calmag, pro bloom, liquid karma...I feed around a half dose of what's recommended on the bottle
-Fox farm ocean forest
-Tap Water PH'd to around 6.5


Thanks guys!

Have you ruled out nitrogen toxicity?
FFOF has its own complement of nutrients and prenutrients. I would seriosuly just water; no added nutes or bennies.
Why Silica Blast? That's really intended for hydro only. cn

The heat and intensity of 2x 600w is causing this, raise the light and blow a fan between the light and the canopy.

silicia blast helps with heat resistance. it puts an extra silicon molecule into each cell making the plant stronger. You cant overdose on silicon so i'd rule that out.

Da Almighty Jew said:

silicia blast helps with heat resistance. it puts an extra silicon molecule into each cell making the plant stronger. You cant overdose on silicon so i'd rule that out.

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I'm not suggesting it's toxic but unnecessary. There's plenty of silica in soil. In hydro I'm a fan of soluble silica. cn

I haven't ruled out nitrogen toxicity...I actually just flushed 2 of them yesterday just in case. I've added extra nutes because the plants are like 5-6 months old (including veg) and fox farm nutes only good for a month or so?

I've got an oscillating fan between the canopy and lights..I've done the "hold your hand under the light" test...doesn't get very hot...I thought heat stress curled the leaves upward as opposed to down?

Dont worry your hand how about trying hold your dick under the light trick.
Bro some strains go beautifully under cfls, weak mh and when put under 1000w+ hps they go like this ,could indicate it prefers outdoors your strain, not a major worry.

I tried the dick trick as well...we're all good on the heat

this is my second cycle with this strain (same set up) first time clawing like that...seemed to happen over the course of a couple days

My vanilla kush are doing this as well...growing in ffof 2 weeks into flower. Mine curl more at the very tips of the leaves...they look fine up until the very tip and then they almost make a 90 degree curl down. I have a 600hps about 18-20 inches above them and the room is at 70 degrees and it doesn't feel hot or anything under the light

Is that a blueberry strain? I have encountered this before on my BlueberryGum and it was caused by a nutrient imbalance/ph lockout.
If it is a blueberry strain..
Test your runoff, if it is reading any higher than 7 you need to lower it... Blueberry doesnt like a high ph.. shoot for 6.5-6.9

Good luck!

I'd bet money those plants are rootbound.

I've actually had quite a bit of problems with fox farm ocean forest

nope, it's Purple Kush...forever I had PH problem...the runoff was 5.0

thanks for the well wishes

What problems have you had with FFOF, Problems?
After nosing around on this site, I chose Happy Frog as a remedial medium for my honeys. I'm very happy with the Frog. cn

you might be on to something with them being rootbound, but they're not really that big?

super low PH...runoff was around 5.0

I actually made this video when I had a bunch of problems mid veg (this was before i added any nutes)

http://www.youtube.com/watch?v=fEHq-3hTY_I&feature=channel_video_title

I've had successful grows in "soilless mixes" but that last couple grows were in fox farm and haven't gone very well

PlantProblems said:

you might be on to something with them being rootbound, but they're not really that big?

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How long have they been in those pots? Remember the roots tend to grow straight to the outside of the pot then mass there. That's why rootbound plants often look like they've been overwatered. Because the roots basically make a mat that traps all the water, essentially drowning themselves. (roots sitting in water can't get oxygen.)

Most people say never to transplant during flower, and although I agree it's not ideal, I'd sooner transplant than have my plants die. I had to do it once and never even saw a sign of stress, but it was only once so I can't give that advice based on much experience.

Obviously be sure that is your problem before taking any action to correct it. You should be able to lift the root ball from the pot as though you are transplanting, but just slide the plant almost out of the pot, check the roots then slide it back in. (That sounds dirty) They key is to disturb the roots as little as possible.

Vascular breakdown combined with increased transpiration due to nitrogen toxicity = "The Claw."

yo bro i just had this happen to some of my chiesel plant right at the end of veg
its too much nitrogen
just flush real good like 3-5 times pot size
then cut n way down and no more claw leaves
the ones already clawed tho will stay that way