You don't need to get live sphagnum, since you're growing CP's (preferably Bog plants, like vft's and sarracenia) the peat mix you're using contains dead spores, which will germinate. Before long, you'll never run out of the stuff...
This isn't true... my plants are in peat moss and there's no LFS to be found even though it's been well over a year.
Weird...hmmm. Usually after I pot up a plant in peat moss, after a few weeks i see sphagnum moss sprouts in there. Maybe it's just me, but it seems to work for me at least...
Works for me as well on every pot