Vanilla cutting

[fotofashion]

Well, that's what I found out it is after thinking it was a rooted plant for probably almost a year. The poor thing was going downhill little by little and I could not figure out why.
I finally decided to unpot it to look at the roots. What roots? It was merely an unrooted cutting. I am rather unhappy about this, of course. I do not have any records as to where I bought it either. Another finding was that although it appeared to be well watered, the sphagnum moss it was in was not getting moist where the cut part of the stem ended.
I would like to save this plant and ask your advice, please. Also, what is the best potting medium for this plant. Thanks.
Beverly A.