Hi
Haven't found a situation where radicans will not grow lol You can stick them in soil hang them from a tree .
The best displays for me are in troughs with very open soil larger and more floriferous . This applies to the the yellow and orange types while the pink purple and particularly the whites not nearly as hardy.
Don't try to plant them just stick in the soil they are actually semi epiphytes Some more are terete vandas, and some types of spathiglottis gary

Gary -
I don't want to hijack this thread - I asked you a question over on the Tropicals forum - don't know if you visit that forum any more. Would you please see link below.

Thanks!
Carol

Here is a link that might be useful: Tropicals Forum Question

Thank you Gary.