Garden design by carolyn mullet: Plant stairs with succulents - this actually works very well, the succulents thrive on the heat from the stone in summer. If you periodically wash the stairs off with (Garden Step Gabion)
By far the best succulent propagation how-to site I've ever found. It's thorough and tells the hows and the whys. -How to propagate succulents. They are easy to take care of and so many different ones to chose from.