I have found those succulents in the weirdest places. Weird because I'd expect them to only be a desert plant. Sandy beaches in topics, hanging in the arms of trees and saguaros, high country where it freezes, next to pines, etc. Then where they would grow best, there are so many varieties, shapes of pads, configurations and types of needles, and then colors purples, reds greens. They are on Islands in the Caribbean and the Mediterranean, too. They tough it out and are among the first to recover after a blade or flood scrapes away the top soil.
They sometimes curl up into a bowl and float. The pads can just sit for months and then attach and take root. Some are very prolific and just take over within months. Here we plant a pad and water it. Water it again in a week and then again. It just grows happy after that. Even brown thumbs have been know to grow these, Eyesup.
Jbee