I grow most everything in what works for my African Violets.
Here is the recipe:
1 part Pearlite
1 part Vermiculite
1 part Canadian Sphagnum moss
1 part Houseplant soil
This gives moisture and drainage. I have 6 growing in this (and 2 growing in plain old general potting soil. I added them to an old pot with some vacant spots.) Fortunately, this plant is very easy to grow and cleans the air!
Hope this helps.
Leda