Chunky old Den Phal thriving in ... gravel?!?

[Orchid Whisperer]

Originally Posted by mexicowpants

Can't see any traces of moss between the stones... Maybe there was originally, but there definitely hasn't been for at least a year. I think I'm gonna follow leafmite's advice and try to break the pot apart a bit before sinking it into a bigger pot with more gravel. We seem to have its watering regime down to a tee right now, so why disturb the balance?

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Second and third photos, there definitely is some sphagnum present. Probably added to retain a bit of moisture. I would still repot as Leafmite suggested. Really only needed when the plant is going over the edge of the pot.

FWIW, I have a Dendrobium spectabile that is planted in mostly volcanic scoria with roughly 10% chunky bark and charcoal. It is happy as a clam.