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)
"This lovely outdoor succulent table made from scrap wood was cut to allow room for planting a row of succulents right down the middle. Now that is a great centerpiece idea!" -- and provokes some thinking about decking too!