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Oncidium onustum

This is a discussion on Oncidium onustum within the Genus Specific forums, part of the Orchid Culture category; Got this mini today and now have to make a decision on how to grow ...

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  1. #1
    TundraKev's Avatar
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    Default Oncidium onustum

    Got this mini today and now have to make a decision on how to grow it. Anyone have this? If so, how do you grow it?

    According to what I've been reading, these often grow on cactus and need to dry very quickly after watering. Some say to mount it, but then you have to water a lot in the summer when in active growth. Others say to pot it if your humidity isn't too high. They do need almost a complete dry rest in winter.

    Pot?
    Mount?

  2. #2
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    LJA
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    I've never grown that Kev, but if it were me, I'd mount it. I think minis tend to look and do their best that way but that's only my .02.

  3. #3
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    He's on a hunk of tree fern now.

    One thing I found interesting about this plant when I was doing some searching was the fact that it does grow on cactus. You would think how in the world could an orchid survive on one of those and under cactus conditions?

    Well, some if not all cactus plants are very efficient dew collectors. You know, the ridges on cactus plants? They collect and funnel water right down the plant to the roots. That's where these orchids grow - in these ridges. Every morning they get a good soaking from the dew collecting and running down the cactus. Isn't that cool?

  4. #4
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    Awesome. Must get me one of those. Cactuses grow quite well here, cos its so dry.

    Just to ask, is it a summer or winter bloomer. Placed on an small aloe it would look so cool.

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    Summer/fall bloomer

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    I don't have that one , but most of my minis are on cactus skeletons , can send a piece if you decide to redo it . Here is a picture of one . G
    Attached Images Attached Images  

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    That is very nice. I don't do mounts the way most people do. I don't have very much mounted, but what works for me is chunks of tree fern sticking out of clay pots - kind of the best of both worlds. I don't have to worry about trying to hang things and the tree fern lets things grow with everything exposed. So far, so good.

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    Nice mount, Gin.

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    This plant flowers regularly for me. It is in a hanging wire basket wedged in with wine corks. This seems to suit its need for a quick soak and then a complete dry out. It is hanging near the top of my greenhouse where it gets lots of light all year and my winter minimum overnight temp is 5*C. It is misted regularly in summer and occaisionally over the winter. It flowers in autumn in my conditions with the spikes becoming visible about mid april (southern hemisphere). Fertiliser is applied over spring and summer at a very dilute rate. Would post a photo if I knew how. Will work that one out later.
    Cheers,
    Misty

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