50% Canadian sphagnum peat moss, 25% sand and 25% medium perlite. This keeps it moist but still allows enough space to get air to the roots.
You will have to read up on all aspects of the care of these specialized plants to be able to grow them.
Re: How soon can I expect a response to my post? 50/50 mix of peat moss and sand or perlite. Go here for all you need to know: http://www.sarracenia.com/faq.html Tom