Week 4 yellowing normal?

Southernontariogrower

Well-Known Member
Brrrrr, they are probably cold, 85 daytime temp is closer to the mark, my tent runs at 90 degrees and they are so happy, think equator which is close to where they originally started their wonderful existence. They like it hot and humid, cooler after buds get big. Summer to grow fall to flower. At 68 humidity should be 50 to 80, 60 to 65 is prime on vpd chart. I'd warm them up a bit as they will grow like weeds. GL
 

curious618

Well-Known Member
Brrrrr, they are probably cold, 85 daytime temp is closer to the mark, my tent runs at 90 degrees and they are so happy, think equator which is close to where they originally started their wonderful existence. They like it hot and humid, cooler after buds get big. Summer to grow fall to flower. At 68 humidity should be 50 to 80, 60 to 65 is prime on vpd chart. I'd warm them up a bit as they will grow like weeds. GL
Yea I’m doin the best I can on that front. It’s in a metal shed outside and with this cold snap temps have dropped like crazy. It’s 17 outside right now....I’m impressed the tent is holding the heat like it does!
 

curious618

Well-Known Member
Brrrrr, they are probably cold, 85 daytime temp is closer to the mark, my tent runs at 90 degrees and they are so happy, think equator which is close to where they originally started their wonderful existence. They like it hot and humid, cooler after buds get big. Summer to grow fall to flower. At 68 humidity should be 50 to 80, 60 to 65 is prime on vpd chart. I'd warm them up a bit as they will grow like weeds. GL
But you think it’s just the cold not a deficiency or anything? Trying to keep her healthy til the end! Don’t wanna mess it up now.
 

Herb & Suds

Well-Known Member
Brrrrr, they are probably cold, 85 daytime temp is closer to the mark, my tent runs at 90 degrees and they are so happy, think equator which is close to where they originally started their wonderful existence. They like it hot and humid, cooler after buds get big. Summer to grow fall to flower. At 68 humidity should be 50 to 80, 60 to 65 is prime on vpd chart. I'd warm them up a bit as they will grow like weeds. GL
85 is too hot unless you have a sealed room and co2 or are growing under LED's
 

curious618

Well-Known Member
Cold can cause deficiencies.

I also have a tent in a shed. I added a oil heater from ace hardware for $30. Local hardware store over here.

My temps stay steady where they need to be.
I’ve got a little heater in the positioned directly behind the desk fan so it’s circulating the hot air. I have a seedling warming mat under the pot as well. Temps seem to hold around that 68-70 mark. But this doesn’t look like a PH lockout or nute lockout or anything? I haven’t done a flush. Wasn’t planning on it unless needed.
 

Wizzlebiz

Well-Known Member
I’ve got a little heater in the positioned directly behind the desk fan so it’s circulating the hot air. I have a seedling warming mat under the pot as well. Temps seem to hold around that 68-70 mark. But this doesn’t look like a PH lockout or nute lockout or anything? I haven’t done a flush. Wasn’t planning on it unless needed.
If anything you have over fed those plants. I'm seeing a bit of Nitrogen toxicity and nutrient burn.

Between your heat scenario and giving to many nutes you have some fixing to do.
 

curious618

Well-Known Member
If anything you have over fed those plants. I'm seeing a bit of Niteogen toxicity and nutrient burn.

Between your heat scenario and giving nutes way too early you have some fixing to do.
This is only one plant and I’m in the 4th week of flower. I didn’t feed the first thee weeks of its life. She’s looked healthy the whole time.
 

Wizzlebiz

Well-Known Member
This is only one plant and I’m in the 4th week of flower. I didn’t feed the first thee weeks of its life. She’s looked healthy the whole time.
I readjusted my comment. Regardless you have nitrogen toxicity in that plant. That's a issue for flowering.
 

Wizzlebiz

Well-Known Member
I also want to give you a warning. Using a fan powered heater is incredibly dangerous.

One leaf falls off that plant towards the back of that heater. It can get sucked into the heating filament and literally spit fire out the front.

Get a oil heater.

1 it's just safer.
2 it's what they call radiant heat. It doesn't blow. It allows heat to come off evenly and holds heat after it shuts off.

Plus blowing direct heat onto your pots many cause issues as well at the root zone.
 

Wizzlebiz

Well-Known Member
Ok. So at this point should I flush and readjust nutrients? Is it going to majorly effect her?
Cut the grow big for now. Keep the other nutes going. Reduce the other big bloom and tiger bloom by 10% and go from there.

Once you begin to see that deep green going away reintroduce the grow big at a very low dose.

That's how I would fix that.

BTW I use ff trio exclusively for years. I know that shit well.
 
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