Growing orchids in rock?

[rich63]

Kathy, The vendor that I have been seeing almost every week lately. They grow all of their Cattleya and a few other type of orchids in some type of rock. I was told that there is only two vendors in Florida who use this rock that is from some where TN? That is why I'm always repotting my new plants. They know how to deal with type of meduim. It dose make repotting very easy. Soak for 10-15 Mins. and the rock dosen't stick to the roots like the bark. They do mix in a little bit of coconut chips and pearlite within the mix depending on the plant? I did include a couple of photos of the rock that they are using. This isn't lava rock, it is to heavy. I use to sell lava rock for ground cover, years ago. Good luck on finding the type of medium you are looking for. Take Care, Rich