Dividing oncidiums??
 

I have several oncs, one is a sharry baby, and some are in S/H which are in clear glass vases, cylinder shaped. For some time now I have noticed that they are awfully crowded.The new bulbs are struggling to have the room to form. The sharry baby has put out 2 nice new bulbs, and only one has spiked. (I bought it with 5 spikes.) It appears that the plant has no room to put out more bulbs, and I wonder if am I supposed to be cutting out the old wrinkled bulbs, to give the new ones room?? The ones in S/H are in even worse shape. The new growth has no room to even mature. :roll:

why not repot?

I have never used S&H but you could just up- pot them into something larger to give more space. You may wait until spring with new growth to do this. Or you could divide them if you don't want them that large. My miltassia is getting very large and it already growing out of the pot I put it in last year, it grows 5+ bulbs a year!