Hi Kerri, I have a few phals. mounted on wood and cork, all species. I also have (3) oncidiums in baskets all miniature twinkles.
All are doing well thus far. The phals. have re-bloomed a number of times the oncidiums are in bloom as we speak. I water the mounts every day
and the baskets every third day, I also have a humidifier, I grow under lights during the cold months and outside on covered porch's in the summer. If you can keep them moist it's a great way to grow them and certainly worth trying. Hank....