Temp and Humidity questions fellas!

Alazzzar

Active Member
What temperature causes slow growth?

What is, too cold in ur Grow room?
I think we all can agree 30c is max..

Anyways..
Does temp/humid have a big effect on growth?

And what’s the perfect temperature and humidity in all stages?

Does plant grow slower in flowering than veg?

:joint:
 

athlete

Well-Known Member
I recently read that the ideal temperature for cannabis is 74F.

My plants are killing it with 82F and 70% RH. This is what gave me the idea to go that route.

I tested the vent fans on continuous which gave me about 75F (I varied the RH from 40-70%) and they stopped growing compared to the 82F ~70% RH.

You gotta dial it in yourself.
 

Driver733

Well-Known Member
You want little higher humidity during veg growth then lower humidity during flower.

Veg: Lights on Temp = 78-82 degrees F, 50-70% RH, Lights off Temp = 68-72 degrees F

Flower: Same Temps, 40-55% RH.
 

vostok

Well-Known Member
What temperature causes slow growth?

What is, too cold in ur Grow room?
I think we all can agree 30c is max..

Anyways..
Does temp/humid have a big effect on growth?

And what’s the perfect temperature and humidity in all stages?

Does plant grow slower in flowering than veg?

:joint:
What temperature causes slow growth? any temp below 15c/65f?

What is, too cold in ur Grow room? as above check stems for red coloring is sap stalling

I think we all can agree 30c is max.. bull. 54c max for sativas 38c is high for indicas (see vdp too)

Does temp/humid have a big effect on growth? see vapor pressure defiet on wiki

And what’s the perfect temperature and humidity in all stages? read a book or spend hours on stoner science on this site

Does plant grow slower in flowering than veg? ..naturally, its a different phase of growth

good luck
 
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