Wisteria is a great choice, very hardy in all conditions and it looks nice too. If you mean Anubis (which you have on the urn) then that too is an excellent choice for low light mine is doing great after 11/2 years but grow very slowly. You can also tie it onto wood or stone with fishingline and it will root itself. If on the other hand you bought Ambulia (fine feathery stem plant) then it requires higher light. Java fern is great too, practically indestructible and it too will root to wood or rock.