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Light orientation

This is a discussion on Light orientation within the General Orchid Culture forums, part of the Orchid Culture category; I'm growing orchids on a four foot, four fixture, fluorescent light stand in front of ...

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  1. #1
    Kenner is offline Junior Member
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    Default Light orientation

    I'm growing orchids on a four foot, four fixture, fluorescent light stand in front of a west window. I'm thinking of the placement of the plants. It seems that the symmetrical type monopodial ones, like vanda, angraecum, and phals should be set with their leaf tips facing north and south. And the sympodials should have their newest growths facing the brightest light, the west. Does this make sense? And how important or not is it?

    I'll take all the help I can get! Thanks.

  2. #2
    Jmoney's Avatar
    Jmoney is offline Senior Member
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    Default

    It's hard to say where the light is brightest in that setup--you'll have to use your own judgement and put the light-loving plants there. With regards to the fluorescents, the brightest light is in the middle of the tubes. Light intensity diminishes greatly as one goes towards the edge of the bulbs.

  3. #3
    Kenner is offline Junior Member
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    Yes, I agree. I am putting the light loving plant on the west part of the fluorescent tubes, giving them the most light from the fluorescents, plus the light from the west facing window. With two light sources, I am afraid of them growing akimbo. If, you know what I mean?

  4. #4
    Persistence's Avatar
    Persistence is offline Senior Member
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    Default

    Well, if you really want to find out your light situation you can get a cheap meter that reads both flourescent and natural light or you can buy a cheap Phal in bud, stick it under your light and watch which directions the flowers face. Should be interesting.

  5. #5
    Kenner is offline Junior Member
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  6. #6
    Brutal_Dreamer's Avatar
    Brutal_Dreamer is offline Dreaming with my eyes open...
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    This thread was awhile back....Sorry to have missed it, Kenner. I am sure you have already figured this one out, but you could also use your camera (if you do not want to buy a light meter) to find the highest light level. Most cameras that have a built in flash also have a light meter. Hope it saves someone a buck or two!

    Cheers!
    BD

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