I discovered an article in the June 2000 issue of the Carnivorous Plant Newsletter, CPN. It presents and advocates a new growing medium for all Nepenthes. It contains absolutely no organic material, so it has several advantages and a couple of disadvantages. If you don't have the CPN issue, you can still read it (sans photos) at:
Just click on the second article, by Heiko Rischer.
Nepenthes, like orchids, can be grown in or on practically anything if you accordingly adjust the way you cultivate them. I'm definitely no Nepenthes expert, but I am going to try growing my Nepenthes this way, if it matters to you.
Barry Meyers-Rice also wrote a blurb on this at:
I also don't know where to obtain Seramis and Lecaton clay pellets, but I'm sure they're available somewhere online, inexpensively. Water Lily baskets are also available online.
And I need to ask, has anyone here ever grown Nepenthes in a completely inorganic substrate? I suppose pure vermiculite counts, but I'm not interested. I know many people (esp. in Europe) grow various plants in inorganic media (the practice is commonly called hydroculture), but not Nepenthes.
Questions and comments are welcome, because that's why I've started this thread.