How do you grow your Dendrobium loddigesii other than in a plastic pot?

[Kurtcm]

I've got two loddigesii I've had for two years that finally bloomed (only 3 buds) this winter. I mounted them on deeply pocked driftwood with sphagnum packed into the crevasses to hold moisture.. AZ desert doesn't have much humidity here.. they spend spring and fall outside in a semi-shaded nook with misters in the afternoon. Lava rock could work!