Jmatt, growing them in clay pebbles just blew my mind!
I have this idea that CP needs low pH media...But anyway, I am going to try your idea of clay pebbles. A few questions then.
1. How large are these clay pebbles?
2. Was the plant already a good size when you potted it in clay pebbles? Or was it a cutting rooted in caly pebbles?
3. What is the relative humidity at where you grow your plants?