Thanks, Mark, for the recipe. This is
REALLY crunchy, and would work very well here where you can cut the humidity
with a knife.
I've used orchid bark and
charcoal in Aroid mixes with very good results. A packaged orchid mix
available here contains the bark,
charcoal, styrofoam, fern tree bark, and other neat
stuff. But it's too expensive to use on a large scale,
A Hoya grower on the Fla west coast grows fabulous Hoyas in
nothing but cypress mulch and a little peat.
I am having success with a potting mix
suggested by a grower of terresterial orchids consisting of fir bark, charcoal,
perlite, pumice, coir, and long fiber sphagnum moss- I sometimes add some leaf
mould or peat. This mix deteriorates after a couple of years and must be