This "silver dollar plant" grows as easily as common Jade (Crassula ovata), but has gray leaves edged in red.
This treelike succulent has large, arrowhead-shaped, velvety gray leaves.
It's so silvery-gray, when I photographed it for my book, the results looked like I had used black-and-white film.
It's truly blue, and an easy-grow groundcover. Creative landscapers love it.