Hi Arvin,
I also did some side by side tests with the same batches of D. Intermedia "Great Swamp" and "Cuba". The results were amazing - the ones on chopped sphagnum came up fast and those on pure peat only came up over five weeks later! (Which is this week so they are hopefully not yet all germinated - the numbers were amazing on the sphagnum). On the other hand ferns, especially Platycerium, seem to do impressively better on the pure peat moss.
And while I'm drifting off thread - I found a source for another media; pumice stone. Various sizes/grades in 1 kilo and 18 kilo bags. The office is in Bangkok and my first delivery arrived today - 180 kilos! Great stuff for my mixes and should add a lot of 'air' to the root systems. Already did a dozen transplants this evening. The Company is called Srilava and their website is
http://srilava.com/
