High humidity

Choo2

Choo2

Active Member
My plants are recording humidity at highs of 50% At times. What should I keep it at. What's a safe level of humidity? I have fans that bring it down some, but as soon as I cut the operation down at night the humidity level rises again. HELP
 
Listening in, similar issue... mostly looking to hear different alternatives to cut the humidity... my box is relatively small so losing space to a dehumidifier would suck.

My humidity is even higher... it's wet where I live and I let my grow run in that to see how bad it'd be. I found even at my levels the problems where mainly found in areas with little/no circulation (under my thick canopy, anywhere plants overlapped, and places where my plants where in contact with the walls or something else) and stopped when I gave them more airspace and access.
 
Humidity isn't a big deal as long as you have fresh air circulating through your tent. My humidity shot up to as high as 80% during lights off and it really didn't effect my plants that much.
 
Cyrus420 said:
Humidity isn't a big deal as long as you have fresh air circulating through your tent. My humidity shot up to as high as 80% during lights off and it really didn't effect my plants that much.
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My fresh air is also humid :-P but yeah you're right, I found air circulation around and in the plant was KEY.
 
50 is good. Normally you want between 60-40 in flower. If it gets higher than 60 i would try to figure something out, but if its a small grow im sure you can. Shit ive ran in the 90s and didnt get mold. more emphasis on air circulation.
 
Hmmm so, assuming proper ventilation, what difference do people notice between less and more humidity? Like I said, mine is very high... I have nothing else to compare it to (this is my first time growing this mystery seed strain... could be anything at all so I wouldn't know what to compare it to). But as a general thing? It looks good. Calyxes are nice looking, plump but not fat... just right. Pistils also looking great. Buds are good size individually, colas have a nice stack going, buds and sugar leaves are very frosty with trichs... I pretty much would say the humidity hasn't affected buds at all. I think my temps (very low) have most certainly kept the plant as a whole smaller and less productive than it could've been.

So for me it seems: High humidity in cool temps (50's-60's) has little or no effect on buds. I will compare with my next run of these (though by then I'll be running warmer temps and maybe lower humidity).

I am trying to come up with ways to lower humidity as well, especially at little to no cost (over a dehumidifier). Only thought so far: something like a large version of a humidity pack in small things... i.e.: a bag of something that absorbs moisture, and for our purposes is dry... like saw dust... it could then be swapped out or removed, the excess moisture baked off (in the sun, or an oven), and replaced.
 
Cyrus420 said:
Humidity isn't a big deal as long as you have fresh air circulating through your tent. My humidity shot up to as high as 80% during lights off and it really didn't effect my plants that much.
Click to expand...
You lucked out. The majority of operations would have picked up mold quickly.

Absolutely cannot bring the humidity down? Raise the heat and airflow, you'll be sacrificing quality though. The highest quality cannabis is grown in cool/dry conditions, with high humidity you'll need high heat to keep up transpiration rates.

Dehumidifiers are really the only way I know of to reduce humidity. Sucks, but that's where it's at.

Douglas
 
Douglas.Curtis said:
You lucked out. The majority of operations would have picked up mold quickly.

Absolutely cannot bring the humidity down? Raise the heat and airflow, you'll be sacrificing quality though. The highest quality cannabis is grown in cool/dry conditions, with high humidity you'll need high heat to keep up transpiration rates.

Dehumidifiers are really the only way I know of to reduce humidity. Sucks, but that's where it's at.

Douglas
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dude, you just stole someone's else's reply and pretended like these ideas are yours. c' mon we're professionals. go to your room :)
 
abe supercro said:
dude, you just stole someone's else's reply and pretended like these ideas are yours. c' mon we're professionals. go to your room :)
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Uh... who am I supposed to have copied? These are my words and didn't even want to say them... high heat/humidity cannabis sucks. You have to keep transpiration up though, so the only real advice if they can't keep humidity down is to keep the heat up.

Did I miss a post where someone else has an actual brain on this subject? If I did, I apologize and thank them for pointing people in the right direction.

Douglas
 
Douglas.Curtis said:
Did I miss a post where someone else has an actual brain on this subject? If I did, I apologize and thank them for pointing people in the right direction.
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Cyrus420 said:
Humidity isn't a big deal as long as you have fresh air circulating through your tent. My humidity shot up to as high as 80% during lights off and it really didn't effect my plants that much.
Click to expand...
thewanderingjack said:
My fresh air is also humid :-P but yeah you're right, I found air circulation around and in the plant was KEY.
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Oh and you just make yourself sound like a total dick. Which you probably are, to express yourself like that.

I love the ignore link on here... it is sweeet
 
thewanderingjack said:
Oh and you just make yourself sound like a total dick. Which you probably are, to express yourself like that.

I love the ignore link on here... it is sweeet
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Am I the only one who has no idea what the quotes this guy posted have to do with my post?
I was replying to the childish nah-nah bullshit with an appropriate attitude. lol

Good luck with your ignore links... :)

@abe supercro, you are indeed most welcome. Always happy to help out with useful information.

Douglas
 
Humidity level in my tent is always 50 - 60% and I grow some dank! (got pics)
Never had a problem with mold. Good air circulation really is the key. Every leaf in the tent constantly wiggles a little bit.
 
Douglas.Curtis said:
You lucked out. The majority of operations would have picked up mold quickly.

Absolutely cannot bring the humidity down? Raise the heat and airflow, you'll be sacrificing quality though. The highest quality cannabis is grown in cool/dry conditions, with high humidity you'll need high heat to keep up transpiration rates.
Click to expand...

Did I luck out? I see you mentioned high heat and did you read the part about lights out being my high humidity times? During lights on my humidity is a constant 30-50% depending on what stage of growth I'm in. Even with the high humidity during lights out I prevented mold simply by keeping a good airflow for my plants.

Also keep in mind that mold needs more than a damp area but it also needs to be a still area too. Keeping a fresh circulation of air around and on your plants goes a much longer way to preventing mold than lowering the humidity will.

Also going to need a citation on the best weed being grown indoors. It's anecdotal but there are people out there who would claim with the same gusto you did that outdoor organic is the best.
 
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