| My formula is 3 parts small perlite to 2 parts coir or Canadian peat, with a little dolomite or oyster shell to off set acidity. But watching the moisture in the pot with a skewer makes them all work.
I like to see Dens put into something fairly airy, as they need to dry out well during winter.
__________________
Cynthia
Prescott Orchid Society  |