Posted: 15/12/2014 at 10:54
depends on the orchid, moth orchids like light on their roots (they can use them for photosynthesis) where as slipper orchids (or hardy ones) need to be in a well draining soil (they're the ones that form bulbs).
feed only during the summer (May to September is best) during winter only water once a week, but light misting daily is best - done in the morning so it has time to dry before the cold of night hits
my orchids are moth orchids, I took them out their pots in spring and attached them to a big chunk of bark with fishing line, they're rooting into the bark now so in the spring I'll remove the line and they'll support themselves.
they're also about to break into flower (as I bought them as plants with no idea of colours it should be interesting what I get!)