Turface is the same as clay absorbent from an auto parts section? I forget the name but I bought a bag of it at Auto Zone, five pounds, seemed cheap, and I was curious. I mixed it with a little potting mix and put succulent cuttings in that. The jades etc seem happy.
Azomite, I think I saw at Farmer's Coop/Southern States in Glen Burnie. I don't know any more, i never got around to getting it though I have been curious about that too.
I bought a bale of a 'Lambert' mix at the nursery this spring and have been happy with it. But I totally forget what I paid and need the bag to see which one it is. It sure has been nice having no end in sight to the potting mix! WHee!!
