cattleya mix
phal mix
lava rock (medium)
Dyna-rock (medium)
I use this mix for all of my orchids but I am experimenting with just lava rock. I made the decision to just use my normal mix for this 14" clay pot because I want to be able to lift the pot. Most of my orchids are near the vanda room so I have to have a mix that drains quick.
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Wally
I'll find room for it!!!! I just make the shaderoom bigger, what is another 12 feet??? Oh, I did that already!!!!
You are so lucky to be able to find crushed lava rock. We have only big pieces for fish tanks over here. I tried to crush them on smaller pieces by myself, but it is pretty hard and I've also got a lot of volcanic dust as a result. So, I use it only as additive to my paph mix.
What are you trying to grow in just lava rock?