New Organic Guy haveing problems..

mike375 · Feb 24, 2026

ok new guy here this is my 3rd go tried two runs with bottled stuff . didn't like the idea so went with gia green pro mix HP 5 gallon bags.got some decent advice early on so I'm here again I would have reached out to the guy who helped me but couldn't figure out how to message him on this forum so Habytual if your out there this morning I could use some advise..
OK on day 25 of flower terms low 80,s during the day lower 70,s at night humidity around 45-50% Got some leaf yellowing and curling and its at the top of the plant since I'm in semi living soil I read its not a good idea to flush

weedra · Feb 24, 2026

how often do you water her? curling at the top could be from the heat from the light.

MrSativa · Feb 24, 2026

Give your soil some top dressing with wormcasting or seaweed she is lacking some N i guess

weedra · Feb 24, 2026

MrSativa said:
Give your soil some top dressing with wormcasting or seaweed she is lacking some N i guess

not nessisaraly if he isnt watering her enough leafs droop and go yellow.... curling at the top indicates to hot by the light.... and or needs water.
my cookies did similar.... and i was watering her a gallon every other day it seemed...

JIMKSI64 · Feb 24, 2026

Anyone answering will need a clarification of what " semi living soil " means
List what and how much has gone into the pot.
List your watering practices and how you determine when it needs water.

And last, cannabis growth is a 3 legged stool of nutrition plus environment plus lights.
From the very stretchy look of the plant the lights do not seem to be set at an optimal rate for good growth.
If you have it get us a light reading in ppfd or light model, distance, and power setting.

weedra · Feb 24, 2026

JIMKSI64 said:
Anyone answering will need a clarification of what " semi living soil " means
List what and how much has gone into the pot.
List your watering practices and how you determine when it needs water.

And last, cannabis growth is a 3 legged stool of nutrition plus environment plus lights.
From the very stretchy look of the plant the lights do not seem to be set at an optimal rate for good growth.
If you have it get us a light reading in ppfd or light model, distance, and power setting.

you got this ill shut up

mike375 · Feb 24, 2026

JIMKSI64 said:
Anyone answering will need a clarification of what " semi living soil " means
List what and how much has gone into the pot.
List your watering practices and how you determine when it needs water.

And last, cannabis growth is a 3 legged stool of nutrition plus environment plus lights.
From the very stretchy look of the plant the lights do not seem to be set at an optimal rate for good growth.
If you have it get us a light reading in ppfd or light model, distance, and power setting.

i dont have any live earthworms or cover crop in my soil ....promix and gia green 5 gallon pots water about a half a gallon every three days useing a soil probe when it says just damp I water with recharge for every watering .just raised my lights to the max 23 inches above running a marshydro es6500 bar style light at a little more than 80% I just top dressed 25 days ago when I flipped to 12x12 so from what iev read I might turn the lights back to 75% and top dress now and not wait for the 30 day mark ????

MrSativa · Feb 24, 2026

Yeah dail lights back and give her some nutes is what i should do. Everything seems OK to me.
She is just a bit hungry.

mike375 · Feb 24, 2026

MrSativa said:
Yeah dail lights back and give her some nutes is what i should do. Everything seems OK to me.
She is just a bit hungry.

the RO water system is running as we speak they will get some seaweed and a early top dressing today

BeefyBully · Feb 24, 2026

if you don't know what PAR is and you not tracking inputs, I suggest using excel and tracking your grow on a template calendar.
as for environmental protocol, keep reading

still looks good, just got away from you...

carlosescobar · Feb 24, 2026

your light is too intense and its causing the plant to lock out potassium...you said you moved it UP to 23 inch, what was it at before. ? if that were mine i would water with plain water (or perhaps a bit of seaweed) and give it a foliar feed , obviously missing the buds . Ive never foliar fed mature plants , just seedlings but i am going to get some proper foliar spray as a standby .

mike375 · Feb 24, 2026

BeefyBully said:
if you don't know what PAR is and you not tracking inputs, I suggest using excel and tracking your grow on a template calendar.
as for environmental protocol, keep reading

still looks good, just got away from you...

inputs gia green I topped dressed when I flipped to flower As this is my 3rd grow I haven't invested in a par meter yet but I have a new guys basic understanding of par the amount of light in a area smeasurement the father the light from plant the lower the par

mike375 · Feb 24, 2026

carlosescobar said:
your light is too intense and its causing the plant to lock out potassium...you said you moved it UP to 23 inch, what was it at before. ? if that were mine i would water with plain water (or perhaps a bit of seaweed) and give it a foliar feed , obviously missing the buds . Ive never foliar fed mature plants , just seedlings but i am going to get some proper foliar spray as a standby .

before it was 20 inchs the mfg,s recommended hight for fower foliar feed with what seaweed extract ?

MrSativa · Feb 24, 2026

I am on my first run with LED now but i have found out one thing and that its to close to the plant very fast, i have a mars hydro sp6500 and with 650watts it really needs 27inch at full blast even when manufacturer says its able to be closer.
I've seen many people complaining about this.

Also dont do foliar now.

mike375 · Feb 24, 2026

MrSativa said:
I am on my first run with LED now but i have found out one thing and that its to close to the plant very fast, i have a mars hydro sp6500 and with 650watts it really needs 27inch at full blast even when manufacturer says its able to be closer.
I've seen many people complaining about this.

Also dont do foliar now.

ive got the light as high up as it can go turned down the power to 75%

carlosescobar · Feb 24, 2026

mike375 said:
before it was 20 inchs the mfg,s recommended hight for fower foliar feed with what seaweed extract ?

Did you give it any cal/mag ? potassium calcium and magnesium compete for space on the roots because they have a similar absorbtion property, so if you had given it calmag it didnt need it might have locked out the potassium....
I still think its the light though, seaweed extract would be good because its potassium rich...foliar feeding doesnt get as much into the plant as watering , but its taken in a lot quicker. I think the idea is to give the roots a breather , and get back to balance, with plain water and feed through the leaves , you dont have to 'flush', as such just a rest.
I am trying loads of foliar feeding with my current grow because it doesnt overload the roots, which i am great at,
I found out today there are cannabis foliar feed sprays with various nutrients... there might even be a specific one for potassium.

Ninjadogma · Feb 24, 2026

mike375 said:
ok new guy here this is my 3rd go tried two runs with bottled stuff . didn't like the idea so went with gia green pro mix HP 5 gallon bags.got some decent advice early on so I'm here again I would have reached out to the guy who helped me but couldn't figure out how to message him on this forum so Habytual if your out there this morning I could use some advise..
OK on day 25 of flower terms low 80,s during the day lower 70,s at night humidity around 45-50% Got some leaf yellowing and curling and its at the top of the plant since I'm in semi living soil I read its not a good idea to flush View attachment 2606750

Youre good man, bud development looks really nice, tops look really nice and green, I think you're just not working with an adequate volume of water when you're rehydrating your pots. You've got some potassium edge burn showing mid plant. The volume of water you mentioned you use supports what we are seeing. The soil is getting a little out of whack and you'll keep it on track by putting more water in... SLOWLY. Every couple waterings you want to send a little extra volume through to push out the junk waste.

Edit: Took a second look and I see the start of calcium spotting too. Imagine Calcium and Potassium in a boxing ring and a double knockout just happened that we call "lockout."

Week4Bytch · Feb 24, 2026

MrSativa said:
I am on my first run with LED now but i have found out one thing and that its to close to the plant very fast, i have a mars hydro sp6500 and with 650watts it really needs 27inch at full blast even when manufacturer says its able to be closer.
I've seen many people complaining about this.

Also dont do foliar now.

Those recommendations are most likely for professionals who use Co2, they can get away with a lot using it, but home growers in tents, not so much.
First three weeks of flower when the plant is stretching is when they plow through the calcium, then because we up the lights to make up for the lost 6 hours of lighting (if you were running 18 on during veg) just compounds the issue.
But .. too much of calcium can block potassium, so you gotta be careful.
Should bounce back just from the light adjustment. Then when the stretch is done, you probably can up the lighting again.
Good luck.

Grownsince95 · Feb 24, 2026

Just a side note on something I noticed...looks like your "canopy" might be very tall top to bottom. Lowering the intensity of your light is going to have a very negative effect on the lower parts of the plant. Looks like you already have some long internodes to deal with.

I wouldn't be so quick to fuck around with things during such a critical phase of growth because of one or two wonky fan leaves.

It's also surprising to see such confident assessments of your situation without pictures of the whole plant and a little more information.

MrSativa · Feb 24, 2026

Week4Bytch said:
Those recommendations are most likely for professionals who use Co2, they can get away with a lot using it, but home growers in tents, not so much.
First three weeks of flower when the plant is stretching is when they plow through the calcium, then because we up the lights to make up for the lost 6 hours of lighting (if you were running 18 on during veg) just compounds the issue.
But .. too much of calcium can block potassium, so you gotta be careful.
Should bounce back just from the light adjustment. Then when the stretch is done, you probably can up the lighting again.
Good luck.

Yes i figure'd that haha i am still used to the fist rule with HPS every 100 watts=4inch so i am still adjusting there.

New Organic Guy haveing problems..

New Organic Guy haveing problems..

mike375

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