Humidity

Discussion in 'Cannabis Grow Rooms and Greenhouses' started by joefrito, Mar 12, 2008.

  1. joefrito

    joefrito Member

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    I cant get my humidity (is the abbreviation rh?) to stay much above 50%, no matter what, and now my temp has risen to 75 (I've been trying to keep between 71-73) since I've sealed my box up to try to keep moisture in for the rh. I was thinking of putting in a small fan for temp, but wont that blow away humid air, dropping rh even more? Please help.
     
  2. BudBill

    BudBill Dark Helmet

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    50% is ok and livable for the girls. With the temps ~ 75'F you can put in a pan of water or some cups and evaporation try to increase it. IMO a lower humidity ~ 50% reduces the risk of bud rot. You can also try misting the plants but be careful of the bulb.

    With spring in the air the warmer temps in general should up the RH.
     
  3. Rocklobster

    Rocklobster Senior Member

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    Can you mist when plants in bud BudBill?. risk of rot but potency etc.. wont b affected. Just thinking aloud thx
     
  4. BudBill

    BudBill Dark Helmet

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    I wouldn't after week 4 - 5 when the weight starts to come - used to call it the "4 week flop" - when the weight would require staking the branches for support. Potency would be fine its like you said bud rot. It is just depressing to see that and you never forget it. Humidity ~ 50% is fine and it varies when the lights are on and off.
     
  5. Naturalhi

    Naturalhi Great hairy ape

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    Wish I could get a rh factor that low, always fighting mould and budrot, big circulation fan and plants farther apart for air movement helps alot:>)

    I also use Seranade Garden Disease Control and I've had to use it right up to 3-4 days before harvest, before I figgered out that the girls were too close together with little air movement!>D
     
  6. joefrito

    joefrito Member

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    Busted by parents! Oh well, no trouble, and due to other problems, I was moving out (they found them then) and now I have moved out, and live in a better place to grow. However, the closet I grow in now retains heat alot better, and temps are usually 80-84 F (usuually 82) and I am somewhat worried. I will buy a fan as soon as money allows, but right now, theres not much I can do. I was wondering, if you have a temp like mine, approximately what should the humidity be?
     
  7. Naturalhi

    Naturalhi Great hairy ape

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    30-60% humidy should keep them happy!>)
     
  8. joefrito

    joefrito Member

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    I believe I read recently that 70% fr vegatative, 50% for bloom? sound right?
     
  9. BudBill

    BudBill Dark Helmet

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    That sounds about the right range but its not something to really worry about except in flowering because of budrot, mold ... the usual suspects. But airflow is important so get that fan. :)

    You will find that the humidity will change in the room when the lights are on vs off, newly watered - in addition to what mom nature gives us.
     

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