For unusual muted shades, landscape designer Stephen Suzman likes to use Echeveria ‘Afterglow’ (powdery pinkish lavender) and E. ‘Perle von Nürnberg’, pictured (grayish brown with a pinkish mauve tinge). Both form rosettes of overlapping leaves, 1 foot across for ‘Afterglow’, 5 to 6 inches for ‘Perle von Nürnberg’. provenwinners.com