Does anyone use a dehumidifier during flower?

visajoe1

Well-Known Member
air flow is key. need adequate airflow above and below canopy.

i dont worry about rh at all in flower, even if its 60%. i operate by vpd, so rh rarely is below 50% at anytime.

in a 4x4 i run a 12" hurricane, on low, above canopy. in flower, i turn on a 9" fan below canopy, full power. both oscillating.

this has worked for me. best of luck to you :blsmoke:
 

NanoGadget

Well-Known Member
If I didn't run a dehumidifier during the warm months my flowering space would be a swamp. I don't like anything over 55% at about 80-82 degrees.
 

Coldnasty

Well-Known Member
Title. What sorts of benefits do you obtain from using one vs. not using one. I'm curious, I still have so long to go until flower, BUT I WANNA PUT THIS THING ON MY PLANTS!! I WANT THOSE SPARKLES
Yessir, The humidity swings wildly where I live and it helps me control and lower humidity especially late flower. Wouldn’t grow without it.
 

Er3

Well-Known Member

"Lower humidity levels in the flowering stage helps promote trichome production, which increases the amount of “glitter” you see on buds"

Edit: one other piece mentioned on the site I forgot to list

"And there’s one more insider trick you need to know about humidity: So you know you need to keep humidity in 40-50%RH range for the flowering stage, but there is one extra trick… Use a dehumidifier to drop the humidity down as low as you possibly can for the last 2-3 weeks of flowering (I’ve gotten the humidity as low as 25%).

This extreme dryness will encourage the buds to seal and protect themselves with additional resin (in other words, a sparkling outer layer of THC-heavy trichomes)."
I think it's a good source for info
 

Charles U Farley

Well-Known Member
I use a dehumidifier in the basement tents because during the summer months the humidity/temp ratio is perfect for the development of botrytis.

...air flow is key. need adequate airflow above and below canopy.
Correctomundo!
 

bobj1598

Well-Known Member
The reason I bougt the dehuey is because I'm growing in a closet and I was worried about the walls becoming infested with mold. I read that thing on growweedeasy and thought the dehuey might serve another purpose.
 

Rahz

Well-Known Member
It's a plant response to high humidity to make the buds airy so that more air exchange can occur. That's not great if you want tight nugs.

Lower RH is useful for contamination prevention and also boosting transpiration which helps move nutrients in plants. Airflow is also important in the micro climates in and around the plants. Airflow increases transpiration to some degree at any particular RH. Airflow can help with contamination prevention but has it's limits as the RH gets higher so try to keep the humidity under 60, down to 50 if possible.
 
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