The Arizona Cactus & Succulent Society has an annual show and sale in April every year. It's held at the Desert Botanical Garden. If you could ever plan a trip it would be very worthwhile, Keith. They have amazing plants!
Name: Kelli Canoga Park, CA, Sunset 19 (Zone 10a) Where summer is winter
It was the cactus and succulent show at the Los Angeles Arboretum in August 2015. They have it every year in the middle of August. There is also a huge sale at the same time. https://www.arboretum.org/cale... They also have a smaller show in November. For some reason it is called the winter show.
