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Offlineyellownotepad
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claw leaves
    #176459 - 01/07/09 01:47 AM (7 years, 10 months ago)

in the last week or two, all my plants leaves have curled under like this:



i'm in pots of straight coir, feeding them 6ml base / 9ml bloom (botanicare triflex) per gallon, daily.  pH adjusted to 6.0 (tiny bit of pH down to get there.  i tried watering them with just straight tap water for a couple days, and then fed without adjusting pH at all.  no change whatsoever.  they look otherwise very healthy, and i've been feeding them exactly this schedule since i started feeding them.  i know claw leaves can be from too much nitrogen, but i dont see how that could happen when i havent changed their feeding, and they've goten BIGGER.


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OfflineTheShroomJew23
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Re: claw leaves [Re: yellownotepad]
    #176480 - 01/07/09 02:46 AM (7 years, 10 months ago)

You do not need to fertilize daily with coir. When you switched to water it had enough build up to keep thriving and grew bigger because it was getting closer to the perfect levels. I grow with an organic coir mix that I fertilize every 3-5 days with magnificent results. If you feed daily you will get heavy salt build-ups which will damage your babies.


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Offlineyellownotepad
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Re: claw leaves [Re: TheShroomJew23]
    #176484 - 01/07/09 03:07 AM (7 years, 10 months ago)

not to argue, but why have they been exploding with growth for a month under these conditions if thats the case? is that how long it takes the salt to build up?

i have a bottle of clearex, will that be helpful in alleviating this issue if it is in fact a build up issue?  any recommended course of action would be appreciated, the bottle instructions seem somewhat generic and i really dont wanna do any damage.


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OfflineJohnny420


Registered: 04/21/08
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Re: claw leaves [Re: yellownotepad]
    #176518 - 01/07/09 09:16 AM (7 years, 10 months ago)

I'm not familiar with coir myself, I'm a soil man, but I'd go with it being a salt build up from too much N.

I've had it happen before when I started feeding too early. In the first couple of weeks growth went crazy. Really started to shoot up and was a really nice colour. Then it turned when the build up got too high. Started looking exactly like yours.

A good flushing will help it for sure. It'll wash out the salt build up.

Does coir have any nutrients in the medium to start with or is it effectively "empty"? From what I've read some people will dose with a weak nutrients solution after flushing just so it has some to keep going while it recovers.

Anybody wish to comment on this technique? is it better to just water with PH balanced water or a weak solution?


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Offlineyellownotepad
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Re: claw leaves [Re: Johnny420]
    #176596 - 01/07/09 12:40 PM (7 years, 10 months ago)

watered copiously with 8ml/gal clearex last night, will do the same tonight, and then maybe half dose nutes tomorrow?  not sure exactly how to proceed at this point

and johnny420 - coir is completely devoid of nutrients


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Offlinet0ad
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Re: claw leaves [Re: yellownotepad]
    #176939 - 01/07/09 09:27 PM (7 years, 10 months ago)

Quote:

yellownotepad said:
watered copiously with 8ml/gal clearex last night, will do the same tonight, and then maybe half dose nutes tomorrow?  not sure exactly how to proceed at this point

and johnny420 - coir is completely devoid of nutrients





the plant in the back seems the tips are curling under; which may mean over-fertilization.  The falling leaves could be over watering;


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Offlineyellownotepad
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Re: claw leaves [Re: t0ad]
    #176963 - 01/07/09 10:36 PM (7 years, 10 months ago)

you can't overwater coco.


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Invisiblecaptain.koons
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Re: claw leaves [Re: yellownotepad]
    #177044 - 01/08/09 01:15 AM (7 years, 10 months ago)

it would definately be hard it may require more than daily watering, but yeah a lot of people saturate their coco and thats not over watering.


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TROLLS NEED LOVE TOO!


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Offlinet0ad
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Re: claw leaves [Re: yellownotepad]
    #177420 - 01/08/09 03:07 PM (7 years, 10 months ago)

Quote:

yellownotepad said:
you can't overwater coco.





ahh im trying it on my next grow op.  I am a little "eh" about rockwool.


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OfflineJohnny420


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Re: claw leaves [Re: t0ad]
    #178005 - 01/09/09 11:54 AM (7 years, 10 months ago)

So can coir be treated exactly like soil? or do you need hydro nutes?


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:jah: :baggy: WE HIT THE TREES TILL WE LOOK VIETNAMESE :baggy: :jah:


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Offlinejohnnyblaze2316
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Re: claw leaves [Re: Johnny420]
    #178319 - 01/09/09 05:28 PM (7 years, 10 months ago)

i think you should try reducing the fertilizer.


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Invisiblecaptain.koons
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Re: claw leaves [Re: Johnny420]
    #178324 - 01/09/09 05:34 PM (7 years, 10 months ago)

Quote:

Johnny420 said:
So can coir be treated exactly like soil? or do you need hydro nutes?




Definately not exactly, and coco specific or hydro nutes will definately be worth it. You can look at organic coco experiments on icmag.


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TROLLS NEED LOVE TOO!


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Invisiblecoda


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Re: claw leaves [Re: captain.koons]
    #189961 - 01/27/09 12:54 PM (7 years, 10 months ago)

clawing and the deep green of those leaves points to your nitrogen levels being too high IMO.


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Offlineyellownotepad
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Re: claw leaves [Re: coda]
    #189973 - 01/27/09 01:29 PM (7 years, 10 months ago)

forgot to post back here  - got the problems all sorted out.  ended up doing rigoroous flushing by putting each plant under the bathtub faucet running for like 30 min per pot (2.5 gal pots).  after this, switched over to a known good coir feeding schedule (6ml gh flora micro / 9ml gh flora bloom per gallon) and the claw leaves went away as the plants used up the excess nitrogen.  they're in bloom now and doing great!


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OfflineYrat
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Re: claw leaves [Re: yellownotepad]
    #189999 - 01/27/09 02:47 PM (7 years, 10 months ago)

cool :thumbup:


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OfflineSirius
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Re: claw leaves [Re: yellownotepad]
    #190264 - 01/28/09 08:28 AM (7 years, 10 months ago)

Quote:

yellownotepad said:
and johnny420 - coir is completely devoid of nutrients




Actually, this isn't true. Coco naturally has high levels of potassium and sodium.

Glad to hear you straightened out your plants! :thumbup:


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OfflineBudZilla

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Re: claw leaves [Re: Sirius]
    #191585 - 02/02/09 04:55 PM (7 years, 9 months ago)

The coir has broken down in the time you started and its N content has risen to the point that it + your standard nutes is too much.  Reduce the amount of base you are using.


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