Debra Lee Baldwin's Top Plant Recommendations: Favorite Succulents with Blue or Gray Leaves for Southern California.
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.