Terrestrial orchids using wicking method?

[Ray]

Originally Posted by Orchid Whisperer

A friend that runs some of the greenhouses at the University of Georgia uses mostly perlite for Ludisia discolor. I think there is some organic matter in there, but it is mostly a very open mix. As Ray says, not strictly SH.

When I started experimenting, very coarse perlite (0.5"-0.75") was my first medium. It works pretty well, but over time, little bits crumble and form a suffocating sludge at the bottom of the pot.