I recently repotted my greenhouse using Rexius Bark mixtures. This stuff is
kiln dried and reminded me of the old Wharehouser bark that I had in the late
70's. Anyway it is very hard to keep wet and seems to dry out fast. The
mixtures for the paphs contains sand but the rest of the plants are potted in a
mix of bark, large perlite and charcoal. None of the pots seems to hold much
water and it seems it will take a long time for the bark to break down.