Yellowing freakin' emergency

I've got a yellowing emergency on my hands here, both Himalaya Golds and Unknown2 (bagseed) are almost completely yellow, Unknown2 is almost friggin' dead...(yellow crinkled leaves and purple stems). I've tried flushing, nutes, flushing, and now epsom salt, nothing has worked! They are getting less nutes than when they were vegging, I don't get it...am I supposed to increase nutes during flowering or reduce them? These girls weren't doing this during veg. Other plants in the grow get the same nutes and aren't having any problems of this magnitude. There's a link to my grow journal below...

How far into flower are you, looks like you got some big buds. Towards the end of flower it is normal for the plant to begin yellowing. In flower plants use more P and K the last two numbers in the 5-5-5 label. Overall though they need more nutes during flower. I cant tell which are yellowing by the pics.

lampshade said:

How far into flower are you, looks like you got some big buds. Towards the end of flower it is normal for the plant to begin yellowing. In flower plants use more P and K the last two numbers in the 5-5-5 label. Overall though they need more nutes during flower. I cant tell which are yellowing by the pics.

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I don't see any pictures? I also don't know how far along in flowering. Sounds like an N defeciency, but could be just about anything. N Defeciency is pretty common late in flower as bloom nutes don't contain much if any N. The plants likely didn't store enough during veg and are now a bit defecient. Are you beyond week 6?

laserbrn said:

I don't see any pictures? I also don't know how far along in flowering. Sounds like an N defeciency, but could be just about anything. N Defeciency is pretty common late in flower as bloom nutes don't contain much if any N. The plants likely didn't store enough during veg and are now a bit defecient. Are you beyond week 6?

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I'm 46 days in, (since switching to 12/12), will post pics tomorrow as they are currently sleeping...it's hard to see the yellowing with the hps light...the one that's farthest along in my grow, (Unknown1, bagseed) isn't yellowing at all...which is quite confusing.

OK i just checked your journal and you're still using vegging nutes (BioVega from Canna)???

bud looks good, and a Nitrogen deficiency is normal in mid-late flowering.

You should've used BioFlores and BioBoost for flowering. They need more PK and less N in flowering, so even if you flush and feed it won't make a positive difference with the wrong nutes.

Up the Flower Power and drop the BioVega.

sandmonkey said:

OK i just checked your journal and you're still using vegging nutes (BioVega from Canna)???

bud looks good, and a Nitrogen deficiency is normal in mid-late flowering.

You should've used BioFlores and BioBoost for flowering. They need more PK and less N in flowering, so even if you flush and feed it won't make a positive difference with the wrong nutes.

Up the Flower Power and drop the BioVega.

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I did drop the Biovega at first when I started flowering, that's when some of the plants freaked out and started going massively yellow, even new growth. When I gave them a bit of Biovega they got green again...The plant in the grow that's almost done (Unknown1) is still solid green....others that are weeks behind it are yellowing. I have no idea what's going on...

Brick Top said:

You said; "(Unknown1, bagseed) isn't yellowing at all...which is quite confusing." Well the answer to that might be one of genetics and not something of a mystery at all.

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Well, that's the confusing part, it can't be genetics, Unknown1 and Unknown2 are the same strain. The only difference at all is that one is in a plastic pail and the other in a clay pot. And the one that is almost done is still solid green. Hairs are completely dark orange, has only grown 1/2" in over 2 weeks. Could be ready now for all I know, but it's solid green.

The plants in the plastic pails have had far less problems and have gotten bigger than the plants in clay pots, I can't figure that one out...

unless its a clone its not the same... i just looked at your plants they look fine relax these things happen during flower how long do they have left????

tusseltussel said:

unless its a clone its not the same... i just looked at your plants they look fine relax these things happen during flower how long do they have left????

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That is pretty much what I was going to say. I mean how many people here can say they bought a pack of beans of some strain/hybrid and one or two plants were very different from the others? Its happened to me so I know it has to happen to others too and that means some beans from the same pack or bag of weed can carry different genetics to some degree.

Look how people will buy a pack of AK-47 and get one or two strawberry type plants. Same type of beans from the same pack but with different genetics in some of them. It can happen.

Same thing as in agreeing with the natural yellowing as flowering progresses. Maybe in those strains it is just slightly more pronounced and early and there is really nothing to be concerned about. Maybe. Hopefully.

I don’t think the pot difference could change anything unless it was a case of just slow growth and not the yellowing and he had low temperatures and the clay pot might insulate the dirt/roots a little better than the plastic pot and the difference might be enough to slow down growth but that can’t be the case and I think that would be a very rare case to begin with though it could be possible it would be of very low probability.

The only question I would have about the pots would be if they were used before and if they were well cleaned or not before using them again but again I think that would be a low probability cause because I would have to believe a problem would show up long before now if that were the case.

I still think it is mostly if not all uneven or slightly improper feeding as in not the right amounts of what was needed at the wrong time. Maybe, just maybe the lights are to close and the temps are to high but I think that has been covered already so I’m not going to run through the thread to make sure but I am about positive is has been covered and ruled out.

I’d say just baby them without overdoing it and end up killing them with kindness and they will come around. They might not end up being all they otherwise could have been because there is bound to have been some loss of leaf efficiency and that means slower growth of everything from the buds to the branches to the leaves and the stem and even the roots but it is not like all is lost. Just maybe a little is lost but what he should still end up with I have to believe will be at least acceptable.

Hummm...didn't know that...they sure as hell both looked the same, (until yellowing issues) they have a very unique leaf pattern, none of the leaf sets have more than 3 on either plant.

Here are pics from today, Unknown2, and my 2nd Himalaya Gold.

My Whiteberry and Blue Cheese have yellow fan leaves, some are brittle on the BC, is that normal? They are huge and green otherwise...47 days into 12/12 now.