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Dendrobium (no ID) new growth

This is a discussion on Dendrobium (no ID) new growth within the Genus Specific forums, part of the Orchid Culture category; Hi there! I think there might be something wrong with my orchid. One of the ...

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  1. #21
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    Hi there! I think there might be something wrong with my orchid. One of the flowers (the oldest) started to turn like yellow and dried without even open and I think it fell off (is not longer in the flower spike). What could have happened? The rest of the flowers are OK for the moment (they have not opened yet).
    Last edited by harvester2015; January 26th, 2017 at 08:14 PM.

  2. #22
    Chris in Hamilton's Avatar
    Chris in Hamilton is offline Senior Member
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    Quote Originally Posted by harvester2015 View Post
    Hi there! I think there might be something wrong with my orchid. One of the flowers (the oldest) started to turn like yellow and dried without even open and I think it fell off (is not longer in the flower spike). What could have happened? The rest of the flowers are OK for the moment (they have not opened yet).
    How often are you watering it?

  3. #23
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    Quote Originally Posted by Chris in Hamilton View Post
    How often are you watering it?
    Everyday. Do I need to stop watering it?

  4. #24
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    I suspect dehydration for some reason. Can you take a picture of a couple of the larger buds and perhaps the pseudo bulb they are on?

  5. #25
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    Quote Originally Posted by harvester2015 View Post
    Oh, I forgot. Anyone knows how long will take this orchid to bloom? I know it might be difficult to say it, but I mean, does a dendrobium need grow few canes before starts flowering?
    a single keiki of one of the D.nobile hybrids ( which in my experience are freer with keikis than others) potted in coarse Perlite, stood in ˝ inch of water - which is what is usually called semi-hydroponic, or S/H , usually flowers within the first year, in my greenhouse. D.kingianum , which is a quite different type, takes a little longer, but not much.
    I use plastic pots for these - clay pots would evaporate too much water and I should for ever be topping up !
    I think your plants is one of the phalaenopsis type Dendrobiums, derived from D.bigibbum of affine for example . I don't find them very free with keikis, but they do grow well in S/H. In my cold northern temperate country with dark short days in the winter, I get good flowering by using supplementary lighting but have not yet got spikes very long - a dozen flowers is about my best ( although some quite short canes - less than 8 inches - may have several spikes at once). In Thailand I have seen spikes 75cm long with 30 or 40 flowers - something to aim at ! But they need or at least enjoy, quite warm temperatures to grow well - at least as warm, probably warmer, than most cattleyas. In Thailand they grow the with the big strap-leaved Vandas, but the Vandas are under 50% shade cloth, and the dendrobes are outside the shaded area.

  6. #26
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    Quote Originally Posted by Chris in Hamilton View Post
    I suspect dehydration for some reason. Can you take a picture of a couple of the larger buds and perhaps the pseudo bulb they are on?
    The pseudobulb with the spike is not wrinkled.
    Attached Images Attached Images    

  7. #27
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    Like your staking method! Everything looks fine to me. This does appear to be a Phal type Den. as Geoff said. They don't need as much sun as Cattleya so that might do it. Could be it was damaged somehow?

  8. #28
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    Quote Originally Posted by Chris in Hamilton View Post
    Like your staking method! Everything looks fine to me. This does appear to be a Phal type Den. as Geoff said. They don't need as much sun as Cattleya so that might do it. Could be it was damaged somehow?
    I don't know for sure, maybe it was damaged. Let's see what happens with the other buds. Can I let the orchid in the window receiving sun as it did until now or should I move the orchid out of the sun?

  9. #29
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    Quote Originally Posted by harvester2015 View Post
    I don't know for sure, maybe it was damaged. Let's see what happens with the other buds. Can I let the orchid in the window receiving sun as it did until now or should I move the orchid out of the sun?
    If it were mine I would move it out of direct sun but still give it very bright light. Only reason I can come up with for dropping buds on such a happy looking plant.

  10. #30
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    Quote Originally Posted by Chris in Hamilton View Post
    If it were mine I would move it out of direct sun but still give it very bright light. Only reason I can come up with for dropping buds on such a happy looking plant.
    I'll put the orchid in a table I have near the window. I'll report back if something else happens or if the buds opens. Thanks!

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