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    How do you deal with low relative humidity?

    My winter indoor humidity is hovering around 25%...
    A Legend...in his own mind. VivoSun 315W LEC, 4' X 2' X 5' Tent GH Flora Trio/Calmag coco/perlite

    #2
    When mine gets lower than I feel is acceptable, I use a humidifier.

    Comment


      #3
      You could try a tray of water in front of your fan..let the fan blow over the water. It'll bring the humidity up. Used it in my garage grow this summer. Not sure if it will bring it up 20-25% but it will help.
      Shappel S3000 3.5x6x6' ice fishing hut
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      45w Root Farm Grow Light
      6" Fusion Breath, Fan/Filter
      4" Vivosun fan/filter
      Canna Coco/perlite
      General Hydroponics Flora Series
      Cal/Mag
      FloraNectar
      Lost Coast Plant Therapy(WPM, Thrips,Mites,Aphids etc)


      Current Grow
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      1 King Tut photo-tent
      1 Crystal Candy photo-tent
      3 Budmail bag seed fem photos(unknown strains)-tent
      4 outdoor purple ayahuasca (Barneys)
      1 Quarter pounder auto- outdoor
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      .

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        #4
        Some folks have mentioned hanging wet towels if you don't have a humidifier.
        If you want to grow top shelf bud, do some research: https://www.growweedeasy.com.
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        Growing since July 21, 2016
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        New grow coming soon

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          #5
          i hang a towel with the bottom end sitting in a 2.5gal bucket of water...brings RH in the tent from ~30% up to ~65%

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            #6
            Bucket of water with an air stone, myself I make soup! But here in OK we rarely have low RH,,,,

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              #7
              I don't bother with dealing with low humidity (I heat with wood) and plants do just fine. In fact I prefer low humidity--less chance of WPM
              Last edited by GreenState; 01-13-2020, 12:45 PM.
              "That's your fortress of fucking solitude. That puts you, for the rest of your life, at a level of fuck you. Somebody wants you to do something, fuck you. Boss pisses you off, fuck you! Own your house. Have a couple bucks in the bank. Don't drink"

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              • Canuck147
                Canuck147 commented
                Editing a comment
                I like this answer - I believe I'm in the same mindset - less chance of WPM I'll use it.

              • SoOrbudgal
                SoOrbudgal commented
                Editing a comment
                Same here i'm not worried about it

              • JDU
                JDU commented
                Editing a comment
                My indoor tent was hitting as low as 11% never higher than 25. I have a strong humidifier going now while the next batch vegges & it's up to 40% but I'm considering taking it out to flower.

              #8
              Same here. Winter indoor, hovering around 23-28%. So far the plants haven't cared. May try the towel method but if the plants don't care I probably won't bother.
              2 x 4 x 5 grow tent
              6" inline fan w/ carbon filter (passive air intake)
              Two 6 fans in tent for airflow
              260w Niemi LED w/ LM301H
              Coco coir w/ perlite
              General Hydroponics FloraTrio plus CaliMagic

              Current Grow:
              1x Spliff Seeds CBD Spliff Berry fem
              1x CBD Crew CBD Yummy fem

              Comment


                #9
                As always - You folks ROCK! I will start with nothing (don't want to invite WPM) and go from there.
                A Legend...in his own mind. VivoSun 315W LEC, 4' X 2' X 5' Tent GH Flora Trio/Calmag coco/perlite

                Comment


                • WizardsNThings
                  WizardsNThings commented
                  Editing a comment
                  Last year I did buy a small humidifier for like $35 and put it right outside the tent. It helped a little bit..can't remember exactly, maybe 10%? That was more for the flowering phase but I probably won't bother this year.

                #10
                Whoops! After reviewing GWE, I think I'd better utilize one of these excellent suggestions. I'm leaning toward JuanHondo's solution. Snce I will be growing in coco/perlite, I don't want my plants to absorb too much of the nutrients: https://www.growweedeasy.com/humidity
                A Legend...in his own mind. VivoSun 315W LEC, 4' X 2' X 5' Tent GH Flora Trio/Calmag coco/perlite

                Comment


                  #11
                  BR2K That's quite low. Where are you in Death Valley?

                  "Average Humidity
                  The relative humidity levels in Death Valley fall well below the national average, ranging from about 55 percent at night and 32 percent at day during winter months, from December through February, to as low as 25 percent at night and 10 percent at day during summer months, in June and July.Jan 31, 2018"

                  I just checked mine here in the sun room, and it is 31% My wife has a number of tropical plants, and they are all doing well. I am in the high desert, and have not had any significant negative effects from the low humidity. Are you seeing a problem developing?
                  Last edited by starramus; 01-13-2020, 03:44 PM.

                  Comment


                    #12
                    Originally posted by starramus View Post
                    BR2K That's quite low. Where are you in Death Valley?

                    "Average Humidity
                    The relative humidity levels in Death Valley fall well below the national average, ranging from about 55 percent at night and 32 percent at day during winter months, from December through February, to as low as 25 percent at night and 10 percent at day during summer months, in June and July.Jan 31, 2018"

                    I just checked mine here in the sun room, and it is 31% My wife has a number of tropical plants, and they are all doing well. I am in the high desert, and have not had any significant negative effects from the low humidity. Are you seeing a problem developing?
                    I too, am in the high desert. I can't be specific, for obvious reasons. Let it suffice to say I won't be posting my efforts. I haven't started growing yet but I hope to within a month...Just for personal use.
                    A Legend...in his own mind. VivoSun 315W LEC, 4' X 2' X 5' Tent GH Flora Trio/Calmag coco/perlite

                    Comment


                      #13
                      I was having issues with humidity, RH in my basement where my tent is sits below 30% in the winter and my tent RH was around 25%. Now I'm up around 36% and I've gotten it up to 50%. I now have two small room humidifiers in my tent, now the issue is my exhaust fan sucks the moisture right out. I opened the fresh air vents wide open on the bottom of the tent, that helped. I also tried recirculating the air from my tent back into the basement, I aimed the vent hose back at the fresh air vent on the outside of the tent with hopes to recirculate some of that moisture back in, it also seemed to work. I have humidifier on each side of my tent furtherst from the intake for the fan. The humidifiers are set on halfway, I can get about 48hrs out of 2gals. If I set them on max, I'll go through 2gals in 24hrs but humidity will be closer to 50%. Other than that, hanging a wet towel would probably be a good option too. I didn't try that but I probably will just to see if it helps
                      4x4x6.5 tent, (2) 18"x46" LED Strip Fixtures 440ish watts? , (2) Solacure UVB T8s, 440cfm fan & filter
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                        #14
                        I am also considering trying one or two diffusers, like for essential oils. I already own them.
                        A Legend...in his own mind. VivoSun 315W LEC, 4' X 2' X 5' Tent GH Flora Trio/Calmag coco/perlite

                        Comment


                          #15
                          I have to fully agree with the do nothing suggestions.

                          A few years ago I controlled humidity using the VPD charts etc.
                          Bottom line, I had the best looking plants in veg I have ever grown.

                          - HOWEVER-
                          There was no effect on the quantity or quality of the buds produced-

                          Low humidity plants may start slow, but once the roots develop they catch up very quickly.

                          This was a low humidity/low temperature/low light winter grow:
                          #4, KISS grow- Girl Scout Cookies- auto:
                          https://forum.growweedeasy.com/forum...ies-autoflower
                          Last edited by Weed Pharma; 01-14-2020, 01:03 PM. Reason: I can spell- I just can't tipe!
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                          Comment


                          • WizardsNThings
                            WizardsNThings commented
                            Editing a comment
                            Good stuff. Nice to try and keep it simple. Growing into the fall and winter here is actually kind of nice because of the low RH. Drying has no mold problems, just gotta be careful with how much leaf to remove and adjust your trimming. What size are the nursery pots they ended up going in? My yields for my last two were about 2 to 2.5oz in 3 gallon fabric. Trying to go higher with 5 gallon fabric, and a longer veg.

                          • Weed Pharma
                            Weed Pharma commented
                            Editing a comment
                            The KISS grow was a 5 gallon nursery pot-
                            -I've since, settled on using 5 gallon fabric pots-

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