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Corybas geminigibbus

Discussion in 'Orchid Culture' started by goods, Jun 23, 2010.

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  1. goods

    goods Well-Known Member Supporting Member

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    Hi I'm new to the forum but have been a lurker for some time. Today, I received a Corybas geminigibbus. I can't find much information about this anywhere, so any tips on culture would be much appreciated.

    Thanks in advance :)
     
  2. Jon

    Jon Mmmm... bulbophyllum...

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    Hi goods. Welcome to OI.

    I asked around, trying to find culture information on this corybas species, and all I was able to find was some generalized genus culture. Troy Meyers provided me with the following "notes" on the genus.

    That said, I have two plants of this species that I acquired at Redland. The one that is growing is in sphagnum, daily water, and in front of a fan. Not too hot, and not too cool. Probably 60-83 every day. It's getting full shade with no direct sunlight at all. The one that is not growing as well is sitting in live sphagnum, set on top of a piece of cork, immediately next to the growing plants. It no longer has a leaf, but the tuber is still alive and firm.
     
  3. Alexis

    Alexis New Member

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    I also acquired one at Redland, and it is growing nicely. It has put on 3 growths with leaves since May. I grow it on a horizontal treefern slab, set in a clay saucer to retain moisture. My climate is very hot with temps in the mid 90'sF, and the plant appears to appreciate the additional moisture. I have my fingers crossed that this guy will thrive, despite the complicated culture advice Troy has provided. (Thanks, Jon, for posting this. I accidentally deleted the email containing this info. Duh.)

    BTW, welcome Goods! Tell us more about yourself, like where you live and what you grow. :)
     
  4. Jon

    Jon Mmmm... bulbophyllum...

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    3 new leaves, Alexis? Damn. I hope it flowers for you.
     
  5. Alexis

    Alexis New Member

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    Yeah, me too, haha!
     
  6. goods

    goods Well-Known Member Supporting Member

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    Thanks for the great information and warm welcomes Jon and Alexis.

    I live in South Louisiana. I'm 18, but I've grown orchids for 10+ years. I grow some vandaceous mostly species, Catt. alliance species and hybrids, a couple small Oncidiums, a ghost I've kept alive for a year, and I received a Bulbophyllum roxburghii in my new order. I am also very interested in Angraecoid orchids.

    Do you think I could grow the Corybas indoors? I have about 60% humidity inside, temps. in the 80's during the day 70's at night. I'm thinking of placing it near a very shaded west window next to an African violet.
     
  7. Alexis

    Alexis New Member

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    Sorry Goods, just saw your question. My only concern about growing indoors would be humidity. Perhaps you could try placing an inverted plastic container over it, as mentioned in the culture info above. Make it its own little greenhouse. :)
     
  8. goods

    goods Well-Known Member Supporting Member

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    Thanks Alexis

    That was also a concern of mine, so I have since changed its environment a little. Its pot is now sitting in a cup on top of about two inches of Aliflor. An inch of the Aliflor is covered by water, and the other inch wocks the moisture. I placed a domed top on the cup similar to those for Icees. The top has a small hole in the middle for some air circulation.
     
  9. lupot1812

    lupot1812 New Member

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    I just orderd the same Corybas and a friend of mine has the same one. He grows the plant inside a Mc. Donald sunday Cup to keep the humidity high. He pokes some holes in the cup, puts some rocks in the bottom and fills the cup with some water but doesn't let the water touch the bottom of the pot. Its important to put the plant in a shady place. It is growing very well, enen though the tempatures are hot here in Puerto Rico, low 80's to mid 90's. Its not much, but I hope this little info can help you.
     
  10. goods

    goods Well-Known Member Supporting Member

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    This is an update. It seems like this thread is the best compilation of information on this species. I have not found anywhere else with growing tips in this much detail, so I will keep updating this thread as long as I can keep my plant alive.

    My plant finally dropped its single leaf around Feb. 13th, so I began to treat it like it was dormant. I lifted the top off the sealed container I had it sealed in to keep humidity up. Humidity during dormancy was whatever the humidity was within the house (30-40% approximately). I only watered a small amount (only enough to wet the surface) about once every 1-2 weeks. I checked the exposed tuber on Friday and there is a small nub on the top and another fuzzy looking thing growing downwards toward the media. I am assuming this is a developing root and shoot. I'm going to continue to keep it in lower humidity and reduced watering until I see further development.
     
  11. Alexis

    Alexis New Member

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    Congrats, Goods, that is a very encouraging update!
     
  12. goods

    goods Well-Known Member Supporting Member

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    UPDATE: It has definitely broken dormancy now! I can see the new leaf/stem elongating from the bulb. I have given it a heavy watering, added some water to the hydroton layer it's sitting on and then capped the cube for the remainder of the growth season. Hopefully there'll be some flowers this year!
     
  13. This_guy_Bri

    This_guy_Bri weirdo

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    sounds great!
    please post photos as it progresses!
     
  14. goods

    goods Well-Known Member Supporting Member

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    Will do!
     
  15. Alexis

    Alexis New Member

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    Way to go, Goods!
     
  16. goods

    goods Well-Known Member Supporting Member

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    Here is a picture of the development so far:
    IMG_0544.jpg
     
  17. goods

    goods Well-Known Member Supporting Member

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    Here's another update: The stem has extended to about an inch in length and the leaf is starting to unfurl.
    IMG_0020.jpg IMG_0021.jpg
     
  18. This_guy_Bri

    This_guy_Bri weirdo

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    :)!!!
     
  19. goods

    goods Well-Known Member Supporting Member

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    The stem has now elongated pretty much as far as it will go (I think) and the leaf is almost completely uncurled and perpendicular to the stem. Does anyone know if I would be seeing signs of flowering now or will the bud form later on? This is a summer bloomer according to IOPSE. I'll post pictures tomorrow when the lights are on.
     
  20. goods

    goods Well-Known Member Supporting Member

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    I think I MAY have a spike on this one!!