I have a clump I bought at a nursary. It's growing well in my greenhouse and keeps flowering, I've had it about 11 months now.
I spray it with plain rain water every day in the summer and once or twice a week over this winter. It's not a problem doing that in the summer as my mounts are out there too and it just gets done with them.
lets see if i can keep any of this stuff alive - i just got a very nice strand of the moss and have tucked it in my little terrarium. will have to remember to check the humidity tray - i just put one in as well...hopefully my phals like it.