Ramonda nathaliae ( I'm sorry but this the right name) is a bit more tricky to establish than R. myconi or serbica. However if you are sure that it get some aditional moist and that it is planted on the north face of a tufa block, whatever in a crevice or in a drilled hole, it will be happy.
Very helpfull is to put a litttle peatmoss under the leaves after planting, just to create a nice micro climate for the plant.
Good luck Mark