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Thread: UV radiation and pitcher plants

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    UV radiation and pitcher plants

    I grow most of my plants indoors on a windowsill during the winter. Since the window glass blocks over 90% of UVB and UVC rays, the plant's don't need to have a tolerance to full sunlight. What's the easiest and safest way to put nepenthes without having the leaves burn and how slowly should this be done?

    I just got a merrilliana x truncata in the mail and it has red leaves due bright light. Does this still mean the leaves will burn if i were to put it outside in direct sunlight?
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    My rafflesiana BE 99 is making normal sized pitchers but with little pigmentation. Does pitcher coloration occur if exposed to UV radiation?
    Finer in 09'er

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    Cardiac Nurse JB_OrchidGuy's Avatar
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    As far as acclimation goes. You should go a little brighter every few weeks as tolerated by the plant. I am not sure about the pigmentation.
    JB
    Friend me on facebook with JB_orchidguy@yahoo.com.
    Growlist Updated 05/08/13

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    Stay chooned in for more! Clint's Avatar
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    Anthocyan in plants is like melanin in humans. It protects us from UV rays, and the red color in some plants exposed to decent levels of UV is sort of like a "Sun tan". More light is going to provide more UV, and the plants increase anthocyan to protect them from it so you have deeper colors on the pitchers, and in really good light the leaves will turn from green to bronze/red/orange/etc. It generally takes a lot less light to make your plants' leaves turn red, so if your hybrid came from lower light that full sun, then yes it can burn.

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    *anthocyanin
    Z polski y dumny
    Prayer - how to do nothing and still think you're helping.
    http://www.youtube.com/watch?v=5F5aCUNE4Z8
    ^^^Newest vid

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    Tropical Fish Enthusiast jimscott's Avatar
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    Having plants at the sil with a screen window turned out to be agood compromise for Mexican pings. They turned pink but didn't burn. But that's with pings...

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    Stay chooned in for more! Clint's Avatar
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    Ron, you're absolutely right! My spelling mistake.

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    Quote Originally Posted by jimscott View Post
    Having plants at the sil with a screen window turned out to be agood compromise for Mexican pings. They turned pink but didn't burn. But that's with pings...
    I'm thinking of putting some of my nepenthes in a little green house i recently got. The panels are some sort of plastic so i'm unsure if they block UV. Putting up my screen window would only supply light to the plants on the bottom shelf.
    Finer in 09'er

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    That plant looks like its gunna be a winner though. I got mine directly from Sam, but I guess genetically, it just didn't have it in it to get that red. Looks like it'll be an "M" type too...those are my favs.
    Z polski y dumny
    Prayer - how to do nothing and still think you're helping.
    http://www.youtube.com/watch?v=5F5aCUNE4Z8
    ^^^Newest vid

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