Jack Herers are Killing Me!

So Im on my 2nd harvest and well the first one didnt go so hot because of the michigan winter and alot of other problems my 2nd harvest has seem to turn around 100x better...except the jack herers.. I'm not sure what exactly is wrong with them but these plants never seem to be happy im always experiencing some sort of problem with them and getting awful yields and alot of unfinished leafy buds. If you guys can help me diagnose the problem from these pics id appreciate it.

The temps are roughly 70-80 Degrees(with co2), humidity 35-45%, 8000watt 20x20x15 grow room.
Nutes- BioThrive Bloom, BioThrive CaMg+, Molasses.

Man that is one ugly plant. I've had a couple look like that before.
Almost looks like its going into re-veg or something. Looks like a mag def, you using r/o?

I forgot to Mention im feeding them Biothrive Bloom, 1tsp molasses per 5g, and Biothrive CaMg+. Water is wellwater sitting out 48hrs mininum

Do you know the pH and PPM of your well water? It looks like the bud leaves are still green-- any ill effects there? If you're in soil, try pulling all the leaves that look like that or worse, put some earthworm castings on topsoil and use just plain water for a week to see if any improvement comes about.

I know the pH comes out at around 7.5 but i always drop it to around 6.4.-6.7 before i water. Not sure of the PPM. I Made sure to give them water only last time i fed everything. The buds look ok although i do have a small spider mite issue that im addressing everyday with pest strips and i sprayed it down with hose knocking off most of them..not much i can do there since its only got about 2-3 weeks left.

I grew her once..and had some issues..i found it picky with nutes..and the height was brutal..i never grew it again. Come to think of it after growing C99 for so long i bet thats were it gets is pickyness from in flowering..it doesnt like a whole lotta P

So no one can pin-point a specific deficiency or overdose? i really dont know what eles to do, i really dont wanna give up on this strain cuz when done right i hear its one of the best sativas out there. The light lemony/fruity smell coming from the buds is amazing. this is so frustrating

I grow this strain and its kinda tempermental. She loves nitrogen but is very particular when it comes to flowering nutes. It looks like you have a toxic salt build up, and multiple other problems. With a few weeks left, you probably will not be able to do much for her. But don't give up on the strain. It is well worth the work.

Can you give any more info like temps, rh, light source. How much bloom ferts are you feeding? Being a semi long flowerer, you have to feed jack herer plants veg nutes well into the 4th week of flower before tapering into the bloom ferts or you will have N def in no time and it will kill your yields.

Probably have a n def with pk overdose and a ca lockout due to salt build up and mag overdose.

That's jyst a guess since there looks to be many things wrong.

TheLastWood said:

I grow this strain and its kinda tempermental. She loves nitrogen but is very particular when it comes to flowering nutes. It looks like you have a toxic salt build up, and multiple other problems. With a few weeks left, you probably will not be able to do much for her. But don't give up on the strain. It is well worth the work.

Can you give any more info like temps, rh, light source. How much bloom ferts are you feeding? Being a semi long flowerer, you have to feed jack herer plants veg nutes well into the 4th week of flower before tapering into the bloom ferts or you will have N def in no time and it will kill your yields.

Probably have a n def with pk overdose and a ca lockout due to salt build up and mag overdose.

That's jyst a guess since there looks to be many things wrong.

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Thats what im thinking to...the Cindy is the same way ...eats loads in veg...but hates alota PK in flower. Along with the other things you mentioned..im gonna bet thisis the problem

is that well water running thru a softener ? if so no go the salts fork it up , to second an opinion that is 1 ugly leaf mites deff didnt help get some safer insecticidal soap at depot lowes

TheLastWood said:

I grow this strain and its kinda tempermental. She loves nitrogen but is very particular when it comes to flowering nutes. It looks like you have a toxic salt build up, and multiple other problems. With a few weeks left, you probably will not be able to do much for her. But don't give up on the strain. It is well worth the work.

Can you give any more info like temps, rh, light source. How much bloom ferts are you feeding? Being a semi long flowerer, you have to feed jack herer plants veg nutes well into the 4th week of flower before tapering into the bloom ferts or you will have N def in no time and it will kill your yields.

Probably have a n def with pk overdose and a ca lockout due to salt build up and mag overdose.

That's jyst a guess since there looks to be many things wrong.

Click to expand...

The temps are roughly 70-80 Degrees(with co2), humidity 35-45% 8000watt 20x20x15 grow room.

As far as bloom verts go i Mix in about 200 ML Into a 25 gallon drum and roughly 150 ML of CaMg+ On feeding days.

What could have caused this salt buildup? Also how would i check the PPM content of my wellwater? I will definently try keeping them on veg nutes till week 4 in flower and see if that changes anything. Is there Any Specific nutes you could recommend that you had alot of success with? I'm not sure of biothrives "organic" nutes are the best thing i could be using.

I'm still very new to this and all your help is very appreciated.

Yeah, Jack is not a beginners plant unfortunately. It's one that's notoriously hard to grow. Maybe try the forums at Sensi Seeds. The company forums usually have the best strain specific information when it comes to their plants, but idk.

Beansly said:

Yeah, Jack is not a beginners plant unfortunately. It's one that's notoriously hard to grow. Maybe try the forums at Sensi Seeds. The company forums usually have the best strain specific information when it comes to their plants, but idk.

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Yeah I now realise why NO ONE in my area has jack herer's. These things are a pain. Thanks for the advice i'll see if i can get any help over at sensi.

check out Truncheon blue-lab EC wands... they really keep u in-tune w/ your salt levels as u mix your nutes. by the 6th week salt levels can be off the charts if you don't do a lot of run off. thelastwood dude was right on w/ his multi diagnose. also, some N up to (at least) half way into flower. everyone should grow jack herer, good luck next run..

You need to feed them. I run the BioThrive Bloom on my SSH around 900ppm and use 40ml for 2 gallons. Get a ppm meter.

I'm running the H&G Coco line for my JH and they seem to love it. PPMs around 1100 3 weeks into flower

And BioThrive is organic, so there shouldnt be much salts

Hey,

I don't think this is an issue with the strain itself, as some have leaned towards. There's a ton of advice you could take in here, and I honestly don't think its any one problem, nor is there any one thing you can change to fix it.

It's times like this when you need to take a step back and just totally re-evaluate the way you're growing. Change everything that you're not 100% sure works. From the way you pack the soil, to the way you water, if you're using RO, switch to ph balanced tap water. If you're using X amount of nutrients, use Q amount of nutrients, change the stuff you're using, the distance from the light, size of containers...there's just too much shit to cover, and as I said, you've got multiple issues going on bro.

Punk said:

Hey,

I don't think this is an issue with the strain itself, as some have leaned towards. There's a ton of advice you could take in here, and I honestly don't think its any one problem, nor is there any one thing you can change to fix it.

It's times like this when you need to take a step back and just totally re-evaluate the way you're growing. Change everything that you're not 100% sure works. From the way you pack the soil, to the way you water, if you're using RO, switch to ph balanced tap water. If you're using X amount of nutrients, use Q amount of nutrients, change the stuff you're using, the distance from the light, size of containers...there's just too much shit to cover, and as I said, you've got multiple issues going on bro.

Click to expand...

Thats funny that you say that because that is exactly what i have done from last crop to this one. My GDPs, NYC diesels, and Skunks have been coming out phenomenal with no problems throughtout after i corrected my RH, Over feeding/over nuting, Phing my water, pests, temperature, and any other mistakes i was making before. I know i'm still no expert and this is exactly why im here to keep learning and trouble shooting to try to eliminate all my errors. Well about 80% of my plants have turned around a 100% since my last crop some im still having issues with (Blueberry, HeadBand, Jack herer). Jack herer is by far the worst of the three as you can see by the pictures.

What i do not want to do is change soils, change nutes, change containers and end up with a bigger mess on my hands. I truely think most of my issues are the spider mites and feeding. The spider mites i have been taking care of everyday and their finally non exsistent in my veg room .My flowering room is still a work in progress . I think this is pretty much narrowed down to my feeding and PPM levels. My next step is to buy a PPM meter and figure out what my water is coming in at and monitering what my plants are at.

I still am lost on what i should change are far as nutrients go. I feed them on the following schedule water/-----/-----/water/-----/-----/Nutes/-----/-----/ (each space representing a day)

I'm definently excited to see what happens by doing what TheLastWood Suggested in feeding them veg nutes till week 4. The jack herers always did fine in veg for me but once put in flower they turn out like you see in the picture.