Obviously I can't help you with the plants, but can I confirm whether you are really looking for Pereskia the shrubby plant with large flowers that hardly looks like a cactus? Or perhaps looking for Pereskiopsis, the grafting stock for seedlings?

Hi shrubs n bulbs. Nope, not interested in Pereskiopsis, just Pereskia. A friend of mine has a Pereskiopsis, but I don't find those as interesting. Regards-

cd

Try Mesa Gardens,

You can find seeds for at least the P. sacharosa in internet stores. You can probably find some other kinds as well. The best to grow potted is P. aculeata spp godseffiana.

/David