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Dendrobium trantuanii

Discussion in 'Orchid Species' started by Marni, Apr 23, 2012.

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  1. Marni

    Marni Well-Known Member Staff Member Supporting Member

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    This Vietnamese species was decribed in 2003. Long-lasting flowers and interesting foliage make this a nice plant at any time of year. The flowers started opening at the end of March. There are still more buds coming. The flowers are a bit over 2" wide.

    amarniturkel.com_oi_d.trantuan.9714.stack.close.jpg

    amarniturkel.com_oi_d.tran.flowers.jpg

    amarniturkel.com_oi_d.tran.growth1.jpg

    amarniturkel.com_oi_d.tran.plant.jpg
     
    Last edited: Jul 13, 2014
  2. xmpraedicta

    xmpraedicta Prairie angraecoid nut Supporting Member

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    This is one of the largest and best grown trantuaniis I have ever seen
     
  3. KellyW

    KellyW Orchid wonk Staff Member Supporting Member

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    Stunning, Marni. I must get one.
     
  4. Marni

    Marni Well-Known Member Staff Member Supporting Member

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    Thanks, Calvin. One of the fun things about growing a species I don't know is to see what it can do and to find a way to show it at its best. So far I've been growing this for 7 years.
     
    MrSplinter likes this.
  5. Alexey

    Alexey Well-Known Member Supporting Member

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    Another spectacular Dendrobium! Marni, was it all these years in pot? My is mounted and during three years no attempt to bloom. Perhaps it is too dry.
     
  6. Marni

    Marni Well-Known Member Staff Member Supporting Member

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    Alexey, I've grown quite a few clones and none of them did well mounted. Mounted they just sat and did nothing. The mounted attempts were at 50F minimum so maybe that was it. This one (and the other equivalent sized plant) have both been grown potted since I got them. This one is in a 4" pot growing in an open, fine bark mix (the same I use for many plants). Since the weight of the flowers tend to bow down the pseudobulbs as they get longer, I set it in basket and hung it up so it wouldn't be falling all over its neighbors. It grows hanging from a cattleya basket so it is in moderately bright light and gets watered on the same schedule as the cattleyas. I'm sure this dries or is almost dry before it is watered again.
     
  7. MiKa

    MiKa Active Member Supporting Member

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    Nearly speachless!
     
  8. Alexey

    Alexey Well-Known Member Supporting Member

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    Thanks Marni, for sharing cultural info for this relatively new species. Shortly after receiving my plant, I have contacted Leonid Averianov, who described it as Dendrobium tuananhii. His climate data was very helpful, but it is not enough for success just to follow Mother Nature :( Mounted vs potted can make huge difference.
     
  9. Marni

    Marni Well-Known Member Staff Member Supporting Member

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    5 or 6 years ago, I hosted Leonid for a few days while he was speaking in the SF Bay Area. His comment on my D trantuanii was that it was a bad color. He said they should be a "normal green" and made a sweeping gesture with his hand indicating the whole collection . When I said that every one I had seen had this same grey-green foliage he said they weren't that way in situ. I had several clones in different location in the greenhouses and every time he saw one, he commented on the bad color and that they looked sick. So I wonder, has anyone seen a clone with dark green foliage?
     
  10. Alexey

    Alexey Well-Known Member Supporting Member

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    5-6 years ago it would be only 2-3 years after species discovery in 2004. Doubt, if information at that time covered all aspects of variability. My plant has light-grayish-green foliage as well. Only at the beginning of new pseudobulb growth I would name its leaves as “normal” green.
     
  11. Ricardo

    Ricardo Slave of demanding bird

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    Wondeful!!
     
  12. gnathaniel

    gnathaniel Lurker Supporting Member

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    Amazing specimen, Marni! My mounted plant grows and blooms okay but after seeing this I'm going to pot it. The foliage on mine looks the same color though it probably gets far less light, water, and fertilizer than yours.
     
  13. Uluwehi

    Uluwehi angraecoids, dendrobiums and more Supporting Member

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    Fabulous specimen, Marni!! The photos are gorgeous and the macro shot is really nice! The hanging basket is a great idea.
     
  14. Boytjie

    Boytjie Out hiking Supporting Member

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    Mine is also light green to grayish-green. FWIW, I've never seen one with darker foliage for sale in any of the vendor greenhouses I've visited. -Stephen