Tommy,
I've had a Brassavola Little Stars for about 2 years now. Its parents are
nodosa x cordata. Mine blooms usually in the fall (Sept-Oct.) I have it in
a medium bark, charcoal and perlite. It does need good drainage and good
bright light. I don't know for sure if the sphag is too moist for its liking.
They do like to dry somewhat between waterings. Here is a link with some
information on yours.
http://www.plantfacts.com/Family/Orc...a.nodosa.shtml