That's what I thought, Ken.. I'm a but surprised that most CPers grow them in sphag.. I think sphag is too acidic and wet for their liking.. I make my medium based on what I can see from pics of northiana growing in situ.. I belief that it actually needs a very well drained medium because it grows on vertivcal limestone cliffs, which are very exposed to surroundings, but it needs to rest its pitchers on a moist surface for them to develop (as can be seen from pics of wild northiana pitchers, always resting on moist detritus)..
