I was very excited about this originally. I put three phals on ollas that I bought from Arizona pottery. The phals grew well in the moist environment but after almost a year none of the roots had attached to the pot on any of them. In fact the roots liked to grow about a quarter inch above the surface of the pot. I gave up and mounted the phals on tree fern fiber plaques where they're growing well. Maybe if something was added to the outside of the olla to give the orchid something to attach to. I really don't know but my ollas are sitting ideal now.
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