| What I have done before with Brassias:
Grew them in charcoal + bits of spagnum in a plastic colander. This sits exactly on top( not into ) of a tray which collects water. The water evaporates and "steams" the media and orchid. Eventually, the roots grew into the water but never rotted. It's only an inch or so of water which dries out in 3 or 4 days and naturally tops up again during watering.
I suggest someone try growing in a Chinese bamboo steamer( dim sum! ) sitting on top of a pan with a simillar diametre.
I believe what rots roots is the brackish, toxic atmosphere of media + moisture. Moisture alone seems fine. |