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orchid Light Levels

This is a discussion on orchid Light Levels within the New Growers: Ask the Senior Members forums, part of the New Growers category; I grow my orchids on an East facing pool enclosure in Central Florida. I have ...

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  1. #1
    DEC's Avatar
    DEC
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    Default orchid Light Levels

    I grow my orchids on an East facing pool enclosure in Central Florida. I have the Phals in the shadiest area with the Catts, Oncidiums and Cymbidiums in a position that gets full sun untill about 1pm. I have noticed what I think is sunburn on a few of the Catts. I just bought a light meter to help me insure they are getting the proper light. I have discovered that the light outside the enclosure is twice as bright as the area that is screened. I just got the meter and, of course, today it is overcast but I got a reading of 2500 where the Catts are located.. I will of course take more measurements on typically sunny days, But my question is "What is the ideal light level for the orchids, what is too bright, and how long of a period can they take the light?

  2. #2
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    Here's what I have in my notes, but I could not tell you the source...

    Phals, 1000-1500 fc
    Oncidiums, Catts & Dends...2000-3000 fc (I think mine get more like 3000-4000 and seem happy)

    If anyone has different info, I am all ears.
    No idea about cymbidiums...I'd love to hear that one.

  3. #3
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    Quote Originally Posted by DEC View Post
    I grow my orchids on an East facing pool enclosure in Central Florida. I have the Phals in the shadiest area with the Catts, Oncidiums and Cymbidiums in a position that gets full sun untill about 1pm. I have noticed what I think is sunburn on a few of the Catts. I just bought a light meter to help me insure they are getting the proper light. I have discovered that the light outside the enclosure is twice as bright as the area that is screened. I just got the meter and, of course, today it is overcast but I got a reading of 2500 where the Catts are located.. I will of course take more measurements on typically sunny days, But my question is "What is the ideal light level for the orchids, what is too bright, and how long of a period can they take the light?
    Orchid Care pages here on RVO

    Cattleya
    Phalaenopsis
    Oncidium

    Cheers,
    BD

  4. #4
    clorisluo is offline Banned
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    thanks for share,that is useful

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