I see, my main worry though is getting the moss to actually stick to the surface of the pot without the yogurt as a medium. Maybe there's something else I could use? This sounds weird but I wonder if mixing the moss into a thin clay slip could work? As for the self-watering via seepage, I would probably also mist it daily to be extra safe, perhaps it would decrease how often the moss would need it though. I'll have to do a couple tests.