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Success mounting Cptra orchid

This is a discussion on Success mounting Cptra orchid within the General Orchid Culture forums, part of the Orchid Culture category; I have a Cptra. Sydney Smith which is in a pot and is not doing ...

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  1. #1
    moniluhum is offline Senior Member
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    Default Success mounting Cptra orchid

    I have a Cptra. Sydney Smith which is in a pot and is not doing well. I have one shriveled pb left on it and it is not firm so obviously not healthy. I know it is related to Onc but am not sure of the differences in care if any. I just thought mounting might work but think the stress of doing so might not be a good thing. Has anyone had success mounting either the Cptra or Onc or does t do better in pot or I read S/H?Name:  Cptra - 1.jpg
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Size:  65.5 KB Yes it looks bad so I need help quickly.

  2. #2
    PaphMadMan is offline Senior Member
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    Carpenterara (Cpta) Sydney Smith is an Oncidium intergeneric hybrid registered in 1993, but due to changes in classification it is called Oncidesa Sydney Smith now. It should respond well to typical Oncidium conditions, and over a broad temperature range. It should do fine mounted, or in S/H or typical potting media with the right care. It can possibly be saved, but I wouldn't try to mount a plant in that condition right away. It needs to come out of the pot, get cleaned of any bad roots or other dead tissue, and get babied with high humidity, I'd use a bed of live sphagnum moss if possible, until it shows some healthy new growth and roots. Then you could try mounting it or whatever you prefer.

  3. #3
    moniluhum is offline Senior Member
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    Would it be better under lights or in a greenhouse (which gets very warm)?

  4. #4
    PaphMadMan is offline Senior Member
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    Under lights is a gentler treatment for now. When it is healthy it should thrive in the greenhouse.

  5. #5
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    Pardon my ignorance but what does S/H mean?
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  6. #6
    PaphMadMan is offline Senior Member
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    S/H stands for semi-hydroponics(TM). The bottom of the pot holds a permanent reservoir of water, usually using fairly coarse media that is inorganic and does not break down. With the right media you get a combination of excellent aeration with constant moisture availability. It is quite successful with a variety of orchids. There is more to it, of course, but that gives you some idea. An internet search should lead you to the website of the guy (Ray) who coined the term, and much detailed information, or he may comment here himself. Or a search of the forum will find many threads.

  7. #7
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    theflowerbread is offline Senior Member
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    Thanks!
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