I found this piece of grapevine wood and was wondering if I could use it to hold my orchids. I have a moth orchid, a vulystekeara, and a zygopetalum that I would like to put in it. It is about 2 ft long , the Gap in the center is about two inches thick and three inches deep. Should I use orchid bark or sphagnum miss to keep the roots in? Would this even work?