Hi Jeff -
Every December, someone from another society brings a Max. uncata that is mounted on a slab of concrete to our classes - it is happy, beautiful. Unwieldy and heavy, of course. I think there is no moss or other medium, but the concrete is covered in algae and other green slime. Still, you cannot argue with success.
Regards - Nancy
p.s. my friend put some Den. loddigesii on an upturned tufa bowl (made of cement mix and peat moss). She uses a buffer to raise the pH when water and fertilizer are added, as the concrete is pretty alkaline.
|