I put Caladenia in a very sandy mix to ensure they don't stay too damp. "Diluting" the organic material with sand also seems to help prevent rotting.
I also don't usually pot my Caladenia up until they show signs of life. Introducing too much moisture before this happens almost always leads to them rotting.
I have to admit it took me a couple of years to work this out and I have lost a few in the process.
Last edited by Bloomin_Aussie; 05-04-2012 at 05:36 AM..