Favorite humidity level for Flowering?

anexgrower

Well-Known Member
50%
I start at 50 for flower and slowly drop it. I’m 3 weeks in at 46%. It will probably stay there for awhile but ultimately drop to about 40 towards the end. 77% sounds like a number proposed by the lobbying arm of the international society for bud rot.
lmao, mine is usually close to 50% and it does fine, unless this old gauge is broken...
 

Partyslayer1

Well-Known Member
Big Humidity...love it. I just shoot for under 50%-my dehumidifier is a tad small so I'm running it 24/7 and it stays right between 48 and 50. Then I raise it up a bit when drying.
Is there a thread for managing humidity when drying via timer/humidity control? I looked.

Basically I want to make sure the RH is on point without having to pop down there as much. I'm in the PNW so it's always 65-70%-ish.
 

Alteredegovintage

Active Member
Yea I’ve heard different things. The ladies are only about 2 weeks into flowering and seem to love the higher humidity. I live in AZ so as soon as I turn down the humidifier the RH drops fast. I definitely will begin to try and lower it as time goes on but for now I feel like I have good enough ventilation to run higher humidity. It also does a great job at keeping my temps down. With the humidity I cruise around 75-78F. With it off I’m looking at 79-82F.
 

tylerzigzag9029

Active Member
Colorado is dry so i veg and flower at around 30 rh i have tried using a humidifier and haven't noticed a difference. They will adapt to the environment the last 2 weeks of flower i drop it as low as i can to help produce more resin. ( My temps star between 68 to 75 F)
 

Thomahawk

Member
Depends on ur temp I tend to follow vpd for flower to , if anything 5% less then what vpd is when ur in flower , if everything else is proper you won’t have any issues roughly 70-74 veg. 60-67 in flower depending on how hot it is never have a problem I do strip em pretty good and have lots of airflow
 
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ilovetoskiatalta

Well-Known Member
Just thought I’d ask what people prefer. I hear different things.
I’ve been keeping my humidity between 50-77%.
The strain/strains you are growing has an effect. Some indica dominant plants with thick dense colas may require below 40%rh.
I am usually content with 45% for most strains, anything above 52% late in flowering would send me sideways for sure.
 

Alteredegovintage

Active Member
I’m still in early flowering for my auto. My other plant is a bag seed and seems to be flowering a bit so I thought it might hopefully be an auto but it’s not moving nearly as quick as the seed I know is an auto. When I have my humidity around 45-55% my temps stay at about 79 right now. They shoot down to about 75-77 when I have the humidity 70+
 
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