Hi Pam - I live in So. Ga. and I don't know where you live so your requirements and availability may be somewhat different. But with great success (you can look at my gallery) I use tree fern w/redwood chips for all my Cats., cat crosses, and oncs. And that is what I am using for this particular orchid. I use bark with chc, perlite, charcoal for Dendrobiums and Aliflor, little perlite and charcoal for my phals. Must also say I have grown all in just a bark mix, perlite, charcoal with success also. I have some Vandas just hanging on a wire and others in baskets with charcoal chunks only. Hope this helps you some. Everyone you talk with may have a different preference on mixes but experiment and see what works best for you. Good luck. - Don
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