I have several orchids, some in soil and bark, some in bark and charcoal and some in sphagnum moss. What is the optimum planting medium for orchids or is it different for the different types of plants? I have maintained the type of planting medium that they all originally came in when I bought them, but just wondering about this. I prefer the bark/charcoal mixture (but it's not me that's planted in it) just for the ease of watering and good drainage.
The books that I have all seem to recommend a specific type of planting material for all plants, rather than various materials for different plants. And of course different material would require different watering/flushing schedules. Just looking for some insight here from the experts. Cheryl