[Cynthia, Prescott, AZ]

Plants that grow upward are plants that have never been properly trained. I put such plants in the pot at an angle such that the rhyzome is horizontal, then first train the new growth vertical, then, as the root system gets sufficiently extensive, I either pull the old growths/bulbs upright, which can often be done somewhat gradually, or just wait for there to be enough vertical newer growths to cut off the old misshaped bulbs. The exception to using this technique is if the spacing between the bulbs is so large that a pot is not practicle, tho many of these get bulb pans. All my Oncidium family plants are in pots and none of them climb out of their pots.