IIIIROBIIIII
Member
Hi what humidity should I have for growing auto's??
Humidity
- Thread starter IIIIROBIIIII
- Start date
peterstoke
Well-Known Member
in flower you want between 40 and 45% humidity. try not to go over 50%. and in veg you can go a little bit higher.
IIIIROBIIIII
Member
Thanks for the reply I'm new to all this so still learning about everything
Dryxi
Well-Known Member
Too low for both veg and flower
Look up the term VPD and cannabis. It will influence your decision about the common advice of 45-55% etc. Your humidity is dependent on your temperature and the plants actually enjoy a higher rh%.
You'll grow good weed either way, but remember VPD for the future
How did you get on at 44%?
Dontjudgeme
Well-Known Member
Too high of humidity isn’t an issue if you have sufficient air flow. I use 60-65% RH from seed to harvest. I typically only drop my RH to about 30-35% the last 2 weeks before chop time.
cowboylogic
Well-Known Member
If you are new to growing I wouldn't worry about that too much right now. MJ is pretty hardy and adaptable. As already stated later in flower is the most critical time as far as humidity goes. Then you want to do your best to keep it below 50% to decrease your chance of bud rot.