I think my plants are screwed

[DirtyDaub]

i'll start with the pictures:









im using fox farm ocean forest for soil, and feeding them fox farm grow big once a week at half strength (than listed on the bottle) dosages.

The ph reading is 7.1 so I dont think that's the problem.

The plants in the 2nd and 4th picture were just moved into 5 gallon pots today in an effort to refresh the soil and give the roots somewhere to move.

Temps have a good deal of fluctuation. I checked the thermometer and the lowest recorded temp was at 48 F while the highest was at 84F, most of the time the average temp is about 66 F though

Can it be temperatures causing these problems or is it something else

Another thing I should mention is that there is thrip infestation

Are these plants salvageable? Can someone give me the steps to get these plants back on track? Or should I just scrap them and start all over?

 

[MynameStitch]

Looks like you burned them which caused a lockout of nitrogen......

How much grow big were you using with how much water?

every 7 days are you feeding?
How long have they been in the soil mixture? How long were they in the mixture before you started to feed them?

What are you using to test pH?
Damn dude, they can't take temps going that low to high like that; you need to keep them at a decent temp; temp flucuation like that can cause micronutrient lockout.

I think your main isse here is you are using to much ferts for there size and to top it off you have FFOF soil which is already rich to begin with...... that is not normal nitrogen deficiency caused by not enough; this is caused by lockout issue which tells me you are feeding them too much with the mixture already being rich.

Ya, they are salvageable very much, you just gotta not feed them as much.

I need to know the exact dosage with how much water......
You wil have to flush your gals out really good.....

Stop listening to the directions on the bottle unless you use canna, advanced nutrients or GH.....

FOX farm especially are terrible; there doses burn the hell outta cannabis.

Grow big is very strong to begin with, not very much is needed.....
How big are your pots? Another thing you are going to have a hell of a time flushing them gals out, those pots are way to big for there size which causes stunting; cannabis grows well when they are put in a proper size pot as they grow up.... they hit growth spurts when they root about 75% of it's pot, doing this will help increase yield by getting them burst's of growth quickly.

Another thing that is wrong with the big pot, if you are going to flush her out with a lot of water; your plants are going to suffer badly from overwatering since the pot size is so big and the root mass is too small to fill up most of that pot....

So you are going to have a hard time fixing this issue..... fans are going to be needed very much to help dry out the soil. Did you add any perlite to your mixture?

 

[DirtyDaub]

"How much grow big were you using with how much water?"

1/2 teaspoon per gallon of water

"How long have they been in the soil mixture? How long were they in the mixture before you started to feed them?"

they've been in there for close to 3 months now, save for the three I just transplanted into the 5 gal. pots today. They were fairly established before I started feeding them (had 4+ nodes, and looked really healthy and bushy). They were probably 3-4 weeks old at that point.

"What are you using to test pH?"

a digital ph tester, fully calibrated, used to measure run off water

"How big are your pots?"

3- 5 gallon and 6- 1 gallon pots

"Did you add any perlite to your mixture?"

nope, just straight ocean forest.


The strange thing about this is that this is my 4th grow and nothing in terms of soil or feeding has changed and the previous grows have been phenomenal. The only real difference that I can think of has been the temperature fluctuations. Can this be the cause of my problems? Thanks for your help Stitch!

 

[Haps]

No it is not temps, flushing is indicated.
H

 

[MynameStitch]

Temps can cause issues; colder temps causes the plants to slow there metabolism down which they won't require as much nutrients and water; which can cause the issues; like I said you gotta control those temps...

Have you grown the same strain these previous grows?
Did they look like that before you transplanted them into those 5 gallon pots?

 

[DirtyDaub]

yeah they've been like this for a couple weeks now and i just moved some of them into the 5 gallon pots today.

right now there are 4 strains in there (juicy fruit, romulan, c99xbb, and menage a trois) all of them are new to me except for the juicy fruits which are clones from my previous grow. All of the plants are affected the same way though even the juicys that im experienced with.

So should I go ahead and flush them all out?

thanks for the quick responses by the way

 

[MynameStitch]

How old were they when you put them into this mixture?
Sounds like they have been getting burned for a long time now......

You got enough fans to dry them all out? Cause trust me when you flush them with all that soil in there your plants will show some signs of overwatering for a bit; meaning there roots are too wet.....

you won't have to water for a while if you flush them out.

It's always good to add perlite to your mixture, even if it has perlite added.
I think you will have to flush them, but before you do I want to know how old these plants were when you first started to have issues with them, and what age did you put them into this mixture?

 

[DirtyDaub]

They've been in the mixture since seed, I only started seeing problems about a month and a half into the grow. Their almost 3 months old now but haven't grown much since that 1.5 month mark. I have a couple of fans so drying out the soil shouldnt be too much of a problem.

 

[MynameStitch]

Was there anything at all you did differently that time?
How often were you feeding them, like when did you start feeding them while they were in the mixture? how old were they?

 

[DirtyDaub]

nope, nothing out of the ordinary. they were about 3 weeks old when i started to feed them and it was only once a week at low strength.

 

[MynameStitch]

How much were you using the same you using now? 1/2 teaspoon per gallon of water?

I would flush them with about 3 gallons of water and resume feeding at 1 tsp per gallon of water weekly after that.

 

[Kr@kEn]

They look overfed to me too. The PH is a bit high for micro absorption. If you can feed with a water PH of 5.5 or use distilled /ro water, this will help counteract the overabundance of lime in the soil. Try not to add lime to soil unless the PH of the soil is below 6.5. Remember that most potting soils are already limed.

I'd avoid feeding to the soil for a couple of weeks. But I would mist the plants with a 1/4 dose or less of something that has micros in it for a quick fix. Just make sure you let the plants dry before turning the light back on.

 

[MynameStitch]

Kraken, where did you hear that RO/distilled water will help counter act the lime in the soil from?

 

[whatsthatsmell]

Also, manicure the plants, just simply pull lightly on the dead material, or clip the dead material off. It is of no use to the plant and is blocking the light below for your side branches. I had the same problem with one of mine that i was able to workout with simply a a couple gallon flush, then waited until the medium was dried and watered with straight water, in the meantime i was clipping the dead plant material off of it. The plant seemed to snap back quicker when i did the clipping instead of leaving it hang on the plant. When you feed again, i would just keep the nute to about 400-600ppm and slowly go up from there. If you dont have a ppm pen that would be about half strength or less. Just enough for the plant to stay alive, but remember there is still nutes in the soil for the plant to use as well as what the plant has stored.

hope that helps

 

[DirtyDaub]

thanks for the help fellas, im going to go ahead and flush them out today.
i'll give you an update in a couple of days.