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how high is your rh (relative humidity)?

This is a discussion on how high is your rh (relative humidity)? within the General Orchid Culture forums, part of the Orchid Culture category; Hi, guys! Been awhile since I've been able to post-have a question...I've been keeping the ...

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  1. #1
    remo is offline Senior Member
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    Default how high is your rh (relative humidity)?

    Hi, guys! Been awhile since I've been able to post-have a question...I've been keeping the humidity in my greenhouse at 67% by using a hygrometer and simple humidifier. I've been getting some nice results. Lots of new growth and less watering. I'm wondering what most of you keep your rh at if you grow in a greenhouse.
    Thanks!
    Remo

  2. #2
    Lizgeo is offline Senior Member
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    I live in Houston, growing orchids mostly outside. When the sun is high in the sky, the humidity would drop to about 30-40%, then bounce back to 60-70% after sunset.

  3. #3
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    sand_tiger86 is offline Senior Member
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    Quote Originally Posted by Lizgeo View Post
    I live in Houston, growing orchids mostly outside. When the sun is high in the sky, the humidity would drop to about 30-40%, then bounce back to 60-70% after sunset.
    I'm in Waco, TX...exactly the same here!

  4. #4
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    orchid-man is offline Not Normal
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    just been out and checked my shade houses - the one which is the most open is siting at 80% with a tempuature of 12 degrees and last night the temperature went down to 6 degrees C and the car was covered in ice this morning.Another shade house was sitting at 85% and this is nearly the middle of winter. I summer The rrh is still up around the same levels

  5. #5
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    my grow tent is around 55- 85% daily depending on how much sun heats up inside the tent

  6. #6
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    I'm using a small humidifier and it ranges from around 50%-75%. The plants seem to be pretty happy.

  7. #7
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    Humidity is really high here in Arkansas and in my greenhouse. Lots of air movement required...

    cheers,
    BD

  8. #8
    jhodgson is offline Member
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    I grow orchids in a sunroom here. Faces south and west, and I use a humidifier. The humidifier is on 80% of the time. In winter, temperature varies from 55 to 70 degF, humidity from 35 to 55. I struggle keeping the humidity up in the winter. Spring, summer, and winter I have no problems. Temperature ranges from 60 to 85 degF, humidity can reach 70 at night, 40 during the peak of the day. The humidity recovers quickly after sunset.

  9. #9
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    mine is the same as jhodgson....

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