Hungry/burnt or?

Hello 1st grow green-o-matic on a 6lt pot using biobizz light-mix soil with 210 true watts of cfl (2700K(105w) & 6400K(105w)). Temps are at 24-25 (a few weeks ago 27-2 celcius and humidity 44%-51%.

I'm 5 weeks from seed and around 2 weeks into flowering. I didn't start feeding until 2 weeks ago because she didn't seem to need it.

On to the problems now.

1) On the top part of the plant where the top bud basically is I've got some droopy leaves.

2)Got quite a few purple leaf stems.

3)Got a couple of yellow leaves on the bottom of the plant with some browning on the edges that looks like it's moving to upper leaves aswell.

Since it's an autoflowering strain I figured I shouldn't feed alot. About two weeks ago (3 weeks since seed) I added 0.5ml of biobbiz bio-grow and 0.6ml of biobizz bio-bloom in 1,5lt of water. On the next consecutive watering I added 0.5ml of grow and 0.8ml of bloom in 1,5lt of water.After that was plain water and on the last watering I added 1ml of biobloom to 1,5lt of water. I water every 4-5 days when the top layer of the soil is dry, and water till I see a bit of runoff. Plain water is around 7ph and with added nutes it's around 6.8ph (unfortunately I only have paper strip tests). Runoff is between 6-7ph.

Trying to figure out what's the problem before the next watering that is due in a few days.

Thanks in advance for any answers.

could be the start of overfeeding, i am not sure on the schedule of auto's but honestly it dosent look that far off base.

I agree doesn't look bad at all

So with the minimal feeding I'm doing, should I lower even that or should keep feeding what i'm feeding now and not increase?

jesus of Cannabis said:

could be the start of overfeeding, i am not sure on the schedule of auto's but honestly it dosent look that far off base.

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Also what do you mean exactly by that? I won't be harvesting for at least 4 weeks from now?so the yellowing is kind of normal?As I said I have barely fed them so it would seem strange that they're getting a nute burn with quite a lot less than 1/4 of feeding.

They should be fine, just maybe give em a little more nutes and see if that helps... if they turn all yellow or start drying up jst pluck it off and watch new growth

JOC was saying that your plants don't look bad, maybe a bit of overfeeding but IMO your underfeeding

IMO you might also be overwatering... those leaves on the top cola look like they have those symptoms of overwatering.

Don't water just when the topsoil is dry. You have to wait until the entire pot is dry. You want to be near de-hydration without actually getting to that point

Stick your finger in the soil as far as you can (on the edge of the pot to minimize root disturbance) the next time you're about to water. Do you feel moisture? You don't need to water!

First off I want to thank you all for helping out

headiessmoka, well you might actually be right here, I have been watering only when top soil was dry and few centimeters below was still a bit damp.

max316420, sounds more likely that I'm underfeeding considering that I've given very low doses of nutes on a light-mix soil. Could be that the strain is over-sensitive though.

Dakota Big Smokin, next watering should be plain water since i'm following the plain water-nute water-plain water cycle mostly. I'll put a bit of bio-grow though for some extra nitrogen along with the bio-bloom.

Today I've noticed some slight yellowing on a few fan leaves at the middle of the plant aswell as some yellowing/browning tips on top bud leaves aswell. As far as i've read though those could be symptoms from overwatering. I'll try and play it safe as far as nutes go since this is my first grow since as you can understand i'm a bit "over-protective". I've got a day or so until I water again. I guess it's a wait and see game at this point. i'd like some comments on the new development of slight yellowing middle fan leaves and yellowing/browning tips on top bud leaves(they do exist in general in other leaves but it's minimal and doesn't actually make me worry). If you'd like new photos let me know

Thanks again blurbing ends now

Don't pluck any yellowing leaves off...she may well still be feeding off it..

sworth said:

Don't pluck any yellowing leaves off...she may well still be feeding off it..

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No I'm not planning on plucking anything at this point, i'm more of a "if a leaf dies and drops i'll just throw it away" guy

Matiker said:

Hello 1st grow green-o-matic on a 6lt pot using biobizz light-mix soil with 210 true watts of cfl (2700K(105w) & 6400K(105w)). Temps are at 24-25 (a few weeks ago 27-2 celcius and humidity 44%-51%.

I'm 5 weeks from seed and around 2 weeks into flowering. I didn't start feeding until 2 weeks ago because she didn't seem to need it.

On to the problems now.


1) On the top part of the plant where the top bud basically is I've got some droopy leaves.

2)Got quite a few purple leaf stems.

3)Got a couple of yellow leaves on the bottom of the plant with some browning on the edges that looks like it's moving to upper leaves aswell.

Since it's an autoflowering strain I figured I shouldn't feed alot. About two weeks ago (3 weeks since seed) I added 0.5ml of biobbiz bio-grow and 0.6ml of biobizz bio-bloom in 1,5lt of water. On the next consecutive watering I added 0.5ml of grow and 0.8ml of bloom in 1,5lt of water.After that was plain water and on the last watering I added 1ml of biobloom to 1,5lt of water. I water every 4-5 days when the top layer of the soil is dry, and water till I see a bit of runoff. Plain water is around 7ph and with added nutes it's around 6.8ph (unfortunately I only have paper strip tests). Runoff is between 6-7ph.

Trying to figure out what's the problem before the next watering that is due in a few days.

Thanks in advance for any answers.

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I had the exact same problem with the (eagle clawing). Keep it at the same nute level till it perks up, if it gets worse then you should back off the nutes a little then add more gradually. It looks like its overwhelmed with nutes for a short period of time because it didn't have nutes for a while. I think you let it go too long without nutes just a slight though. Droopy leaves could be telling you that she is thirsty as well. My plants usually droop when she is thirsty and then perk up afterwards. I wouldn't worry about the purple petiole too much. When the stem itself turns purple or under the fan leaves then you should start worrying. I would add a bit of N and epsom salt to the mix to stop or lessen the yellowing. I believe you should keep the plants green all the way to harvest. The yellowing should start at flushing only.

inhaleindica said:

I had the exact same problem with the (eagle clawing). Keep it at the same nute level till it perks up, if it gets worse then you should back off the nutes a little then add more gradually. It looks like its overwhelmed with nutes for a short period of time because it didn't have nutes for a while. I think you let it go too long without nutes just a slight though. Droopy leaves could be telling you that she is thirsty as well. My plants usually droop when she is thirsty and then perk up afterwards. I wouldn't worry about the purple petiole too much. When the stem itself turns purple or under the fan leaves then you should start worrying. I would add a bit of N and epsom salt to the mix to stop or lessen the yellowing. I believe you should keep the plants green all the way to harvest. The yellowing should start at flushing only.

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You may be right that the abrupt start of nutrients could have caused this. The thing is that the eagle claw symptom appeared once before watering and I assumed that it would be because it needed water but even after watering the leaves remained the same. The thing is that I've read so many cases of burning due to OD of nutes that I was "scared" to use them. That's one thing to know for the next grow though, start nutes earlier on. One thing that worried me right now that I checked since you mentioned purple under leaves and the main stem, is that I'm seeing 4 purple lines/veins on the main stem. None on under the leaves though. Unfortunately I just noticed this.

Edit: The veins I mentioned do not go bottom to top, more like restricted in the middle part of the stem.

Matiker said:

You may be right that the abrupt start of nutrients could have caused this. The thing is that the eagle claw symptom appeared once before watering and I assumed that it would be because it needed water but even after watering the leaves remained the same. The thing is that I've read so many cases of burning due to OD of nutes that I was "scared" to use them. That's one thing to know for the next grow though, start nutes earlier on. One thing that worried me right now that I checked since you mentioned purple under leaves and the main stem, is that I'm seeing 4 purple lines/veins on the main stem. None on under the leaves though. Unfortunately I just noticed this.

Edit: The veins I mentioned do not go bottom to top, more like restricted in the middle part of the stem.

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you are fine, if its not under the leaves so your fine. I know how you feel. I was just like that when I first started and I learned to relax until the leaves change in color dramatically. I would go easy on the nutes until they recover. You could always flush them and start gradually I would add some epsom salt and a bit of N. You still have a quite bit of flowering to go. You could still get amazing results at this stage.

inhaleindica said:

you are fine, if its not under the leaves so your fine. I know how you feel. I was just like that when I first started and I learned to relax until the leaves change in color dramatically. I would go easy on the nutes until they recover. You could always flush them and start gradually I would add some epsom salt and a bit of N. You still have a quite bit of flowering to go. You could still get amazing results at this stage.

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Well I think you hit the way I feel right on the spot. I will refrain from flushing since there's a good chance that she's underfed at the moment. I'll make sure to add a bit bio-grow (has more nitrogen than bio-bloom) and I'll go pick-up some epsom salts aswell. I'll keep her under watch and see how she develops. Also one last question, since my last watering had 1ml of bio-bloom to 1,5lt of water I was planning to do a plain watering this time, but do you think it might be better to do 2 consecutive waterings with nutrients or can this lead to a build of salts in the soil? The nutes I'm using are bio-grow and bio-bloom from biobizz and they're supposed to be organic.

Matiker said:

Well I think you hit the way I feel right on the spot. I will refrain from flushing since there's a good chance that she's underfed at the moment. I'll make sure to add a bit bio-grow (has more nitrogen than bio-bloom) and I'll go pick-up some epsom salts aswell. I'll keep her under watch and see how she develops. Also one last question, since my last watering had 1ml of bio-bloom to 1,5lt of water I was planning to do a plain watering this time, but do you think it might be better to do 2 consecutive waterings with nutrients or can this lead to a build of salts in the soil? The nutes I'm using are bio-grow and bio-bloom from biobizz and they're supposed to be organic.

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I wouldn't do feed feed water yet until they perk up. I have done both feed feed water and feed water feed and I personally don't think they make much of a difference. If you do feed water feed you could add slight more nutes than you would at feed feed water.

inhaleindica said:

I wouldn't do feed feed water yet until they perk up. I have done both feed feed water and feed water feed and I personally don't think they make much of a difference. If you do feed water feed you could add slight more nutes than you would at feed feed water.

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Well today morning I had to water since the top few inches were dry and I added both bloom and grow nutrients since the yellowing was climbing towards the top along with some brown spots on some fan leaves. I read up about deficiencies and it looks as if she doesn't have enough K & P along with a slight N def. I don't think that feeding her was a bad choice considering I have been more than "soft" with nutrients. If the feeding makes her look worst in the next few days next watering i'll a complete flush and start anew with nutrients. I'm hoping that won't be necessary though. Again thanks for your help and I'll let you know how this whole thing turns out in this thread as soon something changes.

I've got some spots on my leaves besides yellowing. Some are brown some are rusty. It's not all over (yet) but for example there are some spots on leaves on the bottom/middle/top. I took some photos to help a bit. Not the best quality but hope it does the trick.

Would really love some insight as to what might be going on so I know what to do.

Thanks once again.

Looks like cal/mg deficiency and maybe some other deficiency/lockout.

What is your water? Nutes? Soil, etc. If this has been listed already, apologies.

headiessmoka said:

Looks like cal/mg deficiency and maybe some other deficiency/lockout.

What is your water? Nutes? Soil, etc. If this has been listed already, apologies.

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Hey man thanks for your time, I posted this on the plants problems sub-forum aswell and was told that I need to feed. I have been very cautious and applied less than 1/4 of nutes maybe too late. I at least now know to follow a schedule as I'm supposed to for my next grow now though.

My water is tap water that i let sit for a while and is at around ph7 (measured with test strips so not very accurate). Drops a tiny bit when I add the nutes.

I use Bio-Grow & Bio-Bloom from bio-bizz, they are organic.

I am using biobizz's light-mix soil since that was the only one that they had left at the growshop, which in retrospect might not be very good for my situation since it's, as it's name implies, a very light soil, nutrient wise, and certainly doesn't help with my fear of adding nutrients when I should.

I had a friend buy me some molasses for their high magnesium & calcium(since from what I've read biobizz's products lack a bit in that department) but unfortunately they were the ones with sulfur dioxide. I won't be able to go get the right kind immediately but should have them right in time for next watering.

I'm planning on adding 2ml of grow & 2ml bloom in 1,5lt of water (it's not enough probably but up until now i've been adding 0.5-0.8ml per 1,5lt) along with a bit of molasses for next watering to try and boost her up, I know it'll be 3rd watering with nutes in a row but I think that starving her to death will be worst. I'm guessing I still have about 3-4 weeks of flowering, maybe more if that means anything.