Hi Evan --
Yes, that's Stachys byzantina 'Silver Carpet'. Great plant here ... doesn't flower and become invasive like other Stachys ... very tidy habit. It doesn't mind heavy soil and seems unfazed by dry, hot conditions. I'm really taken with it.
The blue grassy plant is Leymus arenarius 'Blue Dune' ... Blue Lyme Grass. Now that one will spread like most grasses but not terribly difficult to pull the shallow runners and does well planted in a container in the ground to help inhibit its spread. It gets a nice wheat-like inflorescence about 30" tall.
