Humidifier during winter

JoeBlow5823

Well-Known Member
“If VPD is too large, the plant stomata will close in an attempt to limit transpiration, which can result in issues like tip burn and leaf curl.” Decreased transpiration will limit water uptake from the grow medium.

I can agree that people can get too caught up in charts, but at the same time those charts can help a lot. A plant in veg can still grow at 30%, but it isn’t going to grow as well as a plant at ideal humidity conditions. Mold and bud rot won’t be an issue until his plants start flowering at which point 30% would be good
Always in the 20-30% range....Vegged pretty well in my opinion. Now that they are big they are keeping the whole house a little more humid, 30-40%. Might have to turn the dehumidifier on once they start really flowering.

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Tll7

Active Member
75 or less when lights on. 66-68 lights off.
That’s pretty much where I’m at right now, just a little colder with lights on. I’m in preflower now and I’m getting real tired of fiddling with my humidifier. I’m glad I can pay less attention to charts now that I know growing well in low humidity is possible!
 

JoeBlow5823

Well-Known Member
That’s pretty much where I’m at right now, just a little colder with lights on. I’m in preflower now and I’m getting real tired of fiddling with my humidifier. I’m glad I can pay less attention to charts now that I know growing well in low humidity is possible!
Yeah if you have all the time in the world to play with humidifiers by all means play. Personally its never been a major concern of mine. Temps and actually taking care of the girls is more important.
 
My indoor plants are growing funky.
I suspect the humidity is too low. It is around 28 most of the time.
Does any one have any tricks or suggestions?
Thanks to any that respond.
J
I use a steam humidifier like the one Vicks makes. I keep it on a wireless timer. One hour on one hour off. Holds humidity fairly well at 45-55 percent even with the occasional door opening.
 

OldMedUser

Well-Known Member
I use a steam humidifier like the one Vicks makes. I keep it on a wireless timer. One hour on one hour off. Holds humidity fairly well at 45-55 percent even with the occasional door opening.
Those kind add a nice chunk to your electric bill. I have one that has a nozzle that reaches down into the liquid and just spins the throw out a fine cool mist. I have it on a 15min timer with on 15 off 45 and as I only have a 400W MH going the room stays too cold for the exhaust fan to kick on. That keeps it at a nice 50% for the two plants vegging in there now. Switch to the 600W and that may be warm enough to trigger the exhaust but probably not as the basement where the air comes from is only 48F now and will get colder as our winter does. +2C today FFS.

The steam ones are better when you have a sick kid to take care of along with some Vick's Vapo Rub. Best thing ever when you or a kid has a chest cold.

:peace:
 

OldMedUser

Well-Known Member
That’s pretty much where I’m at right now, just a little colder with lights on. I’m in preflower now and I’m getting real tired of fiddling with my humidifier. I’m glad I can pay less attention to charts now that I know growing well in low humidity is possible!
Just feed less so you don't end up with toxic salts buildup. With low RH the plants can drink twice as much water and twice as much nutes with it. More problem in hydro but I feed hydro nutes in soilless ProMix HP and get it there too if I'm not careful. Can happen in a rich organic grow too especially if hard water is used as the minerals in the water add to the load. I only use RO water.

:peace:
 

OldMedUser

Well-Known Member
I think I'm gonna try that out. Makes more sense. Thanks
Check thrift stores or garage sales. I got mine at one of those places and with RO water it doesn't get all crusty inside. Same with my BUNN coffee maker. :)

Edit: I bought the BUNN new tho. :)

:peace:
 
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