I was thinking of growing either P. caerulea or P. lutea in a pot with a kinda thick top layer of live LFS and then with the rest of the pot filled with peat/perlite. Would this be possible? Or would they slowly sink into the sphagnum? What do they grow in in the wild? I've seen several pics of P. primuliflora grown in it, but I'm not sure really on how to plant them into it.