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Dendrobium vannouhuysii?

Discussion in 'Orchid Culture' started by Mat Brutger, Jan 20, 2021.

  1. Mat Brutger

    Mat Brutger Active Member

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    Who all is growing this rare species? I have a small piece growing in my cool case with my other oxyglossums. It’s on a horizontal mount, but I’ve read that it’s mostly a terrestrial species, so I’m wondering if anyone is willing to share how they’re growing it?
    Thanks!

    Mat
     
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  2. Raven

    Raven Well-Known Member

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    I grow it too. Where have you heard it is a terrestrial?
     
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  3. Chuck-NH

    Chuck-NH Well-Known Member

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    Orchids of New Guinea lists it as a terrestrial, but I would suspect at that elevation it is simply growing over moss covered surfaces as an alpine plant and doesn’t really care what is under it. In cultivation, I would say it’s still best treated as a wet loving epiphyte.

    I have been growing mine mounted (vertically) for quite a few years and they are very vigorous, putting out a lot of aerial roots as they sprawl. I have recently put some on vertical mounts and am thinking about a large, flat wooden basket as that may be the best way to get a large mat of foliage.
     
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  4. Mat Brutger

    Mat Brutger Active Member

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    thanks for the tips! Mine has been slow to establish but is putting out a lot of roots now and seems to be speeding up a bit. The Orchids of New Guinea post is indeed where I read it listed as a terrestrial. Chuck, have you ever flowered yours?
     
  5. Chuck-NH

    Chuck-NH Well-Known Member

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    Only occasionally has it bloomed...partly why I’m trying pieces in slightly different conditions. Primarily brighter and even cooler, but also on the larger flat basket as maybe it’s one on those “ground covers” that likes to get to a certain mass before blooming...maybe like Porroglossum eduardii?
     
  6. Raven

    Raven Well-Known Member

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    Chuck, have you noticed the plant being stressed with higher summer night temperatures? I know of a person who grows this one in Minneapolis in a greenhouse without any extra cooling. Other growers say that is purely a cold grower.
    I keep mine in a wine cooler during summer but would like to move it to the greenhouse, if possible cause it's getting big.
     
  7. DPfarr

    DPfarr Well-Known Member

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    I grow mine in a terrarium on a 45° mount. That terrarium is inside a greenhouse. It gets a mister and fogger. Gets pretty warm in the summer here, with night temp probably at significant value.

    I received it as a cane with a few growths and it has 10+. Not sure what critical mass it needs to achieve to flower. I can’t wait though.
     
  8. Mat Brutger

    Mat Brutger Active Member

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    Wait I’m in Minneapolis! Who else has this here and why don’t I know them!?

    Chuck, I would love to see pictures of yours in bloom if you have them! Congrats on blooming it, I don’t know of anyone else who has!
     
  9. Raven

    Raven Well-Known Member

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    Thanks, now I feel more confident about trying to grow it in a greenhouse year-round. Does it get to the high 60s at night in your terrarium, what do you think?
     
  10. Chuck-NH

    Chuck-NH Well-Known Member

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    Hi, I’ve never noticed any summer stress at all. I do have an evaporative cooler plus an Aqua Fog 700 that is connected to a rainwater cistern...so I am able to temper the very hot days
     
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  11. DPfarr

    DPfarr Well-Known Member

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    This is just Sacramento average for summer. This past summer there was a historical heat wave and this species stayed in an area no where near the cooler.
    June. 89° / 59°0 days
    July. 94° / 61°0 days
    August 93° / 61°0 day

     
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  12. jin

    jin New Member

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    hi all, I was wondering how you managed to acquire this one? I have been searching for years in the UK but can't find any at all. which is a real shame because its probably my favourite orchid in the world! With a unique growth and way of flowering.
    If anyone knows where I can buy one i'd be smitten!
     
  13. Raven

    Raven Well-Known Member

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    Try choosing a different favorite orchid in the world! LOL
     
  14. jin

    jin New Member

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    lol! if only i could do that!
     
  15. jin

    jin New Member

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    but do you know anywhere i can buy one? Been searching for a few years now
     
  16. Marni

    Marni Well-Known Member Staff Member Supporting Member

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    Try Jeff Tyler of In Situ Orchids in Sacramento, CA.
     
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  17. jin

    jin New Member

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    oh right, I guess he's the guy. hope he ships internationally :)