Repotting my onc-pot size?
 

I recently bought a NoID onc. Its flower stem got bent in transit so sadly the flowers dropped a lot earlier then they should have. The up side being I had been itching to get it out of the pro-mix it was in. My question is if I should go up a pot size with it. I put it in coir/perlite and spag back in its original pot with extra holes cut in the sides. Its roots looked great but now I'm wondering if I should have gone up a pot size with it as it was pretty root bound. I can also see the beginnings of a new growth on the largest bulb. Should I leave it be or shift it before it has a chance to get settled?


Pics of the plant and my pot options. I would really like to get it into something clear so i can keep an eye on it.
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If it fit into pot I would leave it. They flower better when rootbound in my experience.

Bill

I'd leave it - you can always go up a pot size later if it needs it

If the new growth is still small and without roots, I'd take it out and put it into a pot that has about 1 inch of room around the base of the plant mass. Especially if the root ball was fairly dense. The new growth will have some place to grow it's roots. But if the root ball was very dense, maybe it's time to get that old media out so the roots can breathe better. Pictures would be nice. Oncidiums like tight quarters but the roots also need to breath as they are very thin and rot easily. The more loose the media the more the plant can be watered without worry of rot. Oncids love shallower pots than most orchids. If the new growth has roots longer than an inch, don't mess with it. Leave it for next dormant season.

My Onc. do better when there root bound and they give me more spikes and flowers, so unless the plant is all roots and no mix, I say wait for a while.

The growth is still very small. I think it needs some of the old roots trimmed away, I am wanting to do it today as its a very sunny day with good light so I can see easily what I am trimming. The two clear pot pictured above are what I have available at the moment. (holes will be made in the one before anything goes into it never fear)

I would leave it in the pot as there is at least 2 years growth space. I would also incorporate a fine-to-medium bark mix with your potting mix, at least 50%.

Repotting my onc-pot size?
 

Like others have opined, I would leave it in its green pot. The smaller pot, did you already put holes in it? If not, I would put a smaller pot upside down inside this pot, put some water in it, and put the plant in that--this will help raise humidity (the plant's pot should be above the water line). I have all my individual plants in a similar configuration.

an important point to note is that the plant looks really healthy. A tell-tale sign is the state of the pbulbs. Yours are all plump - it was doing well in the mix it was grown in. Don't mess with success.