Thanks, I'll keep researching. Mine are in full sun, all day, on my deck and keep
growing new stalks. All three of mine came from the same
plant & I separated them a couple of years ago. Right now, they aren't compact in the pot, I didn't know, when I separated them, that they liked that but, that explains why they didn't do as good right at first.
My rock garden will be in full sun, all day, on a small hill. So, I think it will stay drained pretty well. I plan on putting my mother of thousands, aloe vera (when it gets bigger), prickly pear & mother-in-laws tongues in the rock garden.
Thanks for your help.
Edit: This is an after-thought...I wonder if I was to just dig a hole & sink the pots down in the ground, then build my rock garden over that...that may work to keep them root bound, ya think?