30 days into flower, odd yellowing?

Mojave

Well-Known Member
First off I'm moderately to severe colorblind. So detecting nutrient deficiencies is a chore for me.

I'm 30 days into flower with this Green crack, which i believe is the more indica leaning pheno? This is the second time I've flowered this strain from clones. And last time it did this crap too. But last time i had a trunk split low stress training it.. Which i thought caused its yellowing issues in flower last time. I'm using a no till, amended soil. Last round i had a fruit punch in one of the 25 gallon fabric pots and it did fantastic. No issues all the way through. So I'm not sure what the problem is. Lights are about 25 inches above the canopy. I got this clone from a friend and i think it's genetics maybe just aren't that great? Although it clones/vegs super fast and easy.
I do a compost tea every so often and can list what I use if needed. I just recently used a fungi based tea with hydolyzed fish. Plants seemed to like it.

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Mojave

Well-Known Member
I have well water which is consistently between 6.8 and 7. I never check it though as all through veg. All my plants are perfect. And i read that with a living soil, it PHs itself?

Maybe this strain is a heavy feeder? I have top dressed with worm castings multiple times, some new already amended soil, and of course the teas which have nitrogen as well. Nothing really changes it. It also seems to shed old yellowing leaves quite regularly.
 

Mojave

Well-Known Member
Well my other grows and strains have had no issues, which is the only reason why i don't think its the water. Even my seedlings are great with it. I'll check the PH and run off tonight.
 

Mojave

Well-Known Member
Hmm i did add like a handful of lime pellets in my intial mix like a year ago...That could be it, i hadn't thought of that.

Could i try and mix/dilute the pellets now in water to try and help them along or would that be bad?

I do occasional waterings with black molasses for trace things, dunno if it helps.
 

mauricem00

Well-Known Member
First off I'm moderately to severe colorblind. So detecting nutrient deficiencies is a chore for me.

I'm 30 days into flower with this Green crack, which i believe is the more indica leaning pheno? This is the second time I've flowered this strain from clones. And last time it did this crap too. But last time i had a trunk split low stress training it.. Which i thought caused its yellowing issues in flower last time. I'm using a no till, amended soil. Last round i had a fruit punch in one of the 25 gallon fabric pots and it did fantastic. No issues all the way through. So I'm not sure what the problem is. Lights are about 25 inches above the canopy. I got this clone from a friend and i think it's genetics maybe just aren't that great? Although it clones/vegs super fast and easy.
I do a compost tea every so often and can list what I use if needed. I just recently used a fungi based tea with hydolyzed fish. Plants seemed to like it.

View attachment 4045118 View attachment 4045119 View attachment 4045120
I had a similar problem with mine when I switched to organic growing in soil but only the fan leaves turn yellow. I added some Epsom salt and that cured the problem it definitely looks like a magnesium deficiency.the tips of the leaves are not burned so it is not a potassium deficiency or excess nitrogen. could also be a sulfur deficiency but Epsom salt will cure that as well.never had a PH issue with soil. thats more of a problem with hydro
 

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SPLFreak808

Well-Known Member
First off I'm moderately to severe colorblind. So detecting nutrient deficiencies is a chore for me.

I'm 30 days into flower with this Green crack, which i believe is the more indica leaning pheno? This is the second time I've flowered this strain from clones. And last time it did this crap too. But last time i had a trunk split low stress training it.. Which i thought caused its yellowing issues in flower last time. I'm using a no till, amended soil. Last round i had a fruit punch in one of the 25 gallon fabric pots and it did fantastic. No issues all the way through. So I'm not sure what the problem is. Lights are about 25 inches above the canopy. I got this clone from a friend and i think it's genetics maybe just aren't that great? Although it clones/vegs super fast and easy.
I do a compost tea every so often and can list what I use if needed. I just recently used a fungi based tea with hydolyzed fish. Plants seemed to like it.

View attachment 4045118 View attachment 4045119 View attachment 4045120
Do you top-dress anything or use bottles?
What is your amendments?
Did you up-pot before flower?
Can you snap a pic without the grow light on?
 

Sirsmokealot91

Well-Known Member
I know I'm a newb and I don't think I saw it anywhere in the thread but check the ph of the run off after you have watered the plants. The ph of the water going in and the water coming out may be different
 

whitebb2727

Well-Known Member
As it looks in that light it looks to need N and mag. Next watering give it one teaspoon of Epsom salt per gallon of water.

A bit of pellet lime in soil mixes goes a long ways.
 

Mojave

Well-Known Member
Did a foliar with the Epsom salt last night, along with watering in a tad. They seem perked up today. Also have a compost tea with neem meal, worm castings and guano brewing up. And will probably throw some fresh fungal compost I have on hand in with it to feed them. Luckily All the flowers look good i think. Just the leaves are in rough shape yellowing and some clawing down.
 

chemphlegm

Well-Known Member
at least jam some jobes organic spike in the pots until you can start using a complete nutrient system to feed on a scheduled basis.
 

Mojave

Well-Known Member
Thanks, I'll look into those spikes.

I think i just got lax with top dressing, and this strain being so bushy throwing nodes out every which way. Its just a heavy feeder.

Hopefully i can stay on top of this now and it won't cost me too much when it's time to chop
 

Greenthumbs256

Well-Known Member
Did a foliar with the Epsom salt last night, along with watering in a tad. They seem perked up today. Also have a compost tea with neem meal, worm castings and guano brewing up. And will probably throw some fresh fungal compost I have on hand in with it to feed them. Luckily All the flowers look good i think. Just the leaves are in rough shape yellowing and some clawing down.
Be careful with doing foliar spray in flower. I never spray in the flower room, veg only!
 

andy s

Well-Known Member
I have well water which is consistently between 6.8 and 7. I never check it though as all through veg. All my plants are perfect. And i read that with a living soil, it PHs itself?

Maybe this strain is a heavy feeder? I have top dressed with worm castings multiple times, some new already amended soil, and of course the teas which have nitrogen as well. Nothing really changes it. It also seems to shed old yellowing leaves quite regularly.
maybe iron
 

ANC

Well-Known Member
The plants need more food as they progress through flowering.
If you are not flushing you will feed right up to the end trying to make the fattest buds you can.

It just looks like you have depleted nitrogen stores. Plants take most of this element up through vegetative stages. When it yellows up like that, it is being transported to new growth in need of more than the roots are supplying.

Depending on the school of thought you follow, this may not be a bad thing.
You can get less bud that smokes nicer, or bigger yields and more potent bud that is a bit harsher.

Remove those yellow leaves when they start going limp. Don't let them dry and potentially rot on the plant
 

AmericanGrower508

Well-Known Member
I would guess its PH related, Ph doesn't affect veg plants nearly as much as flowering plants. I would amend your soil next time to pulverized lime instead of pellets as it breaks downs much better and faster.
 
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