I know folks will think I'm nuts however I want to plant creeping charlie. I like that it doesn't take any maintenance, is low growing and always green.

We are getting rid of our trampoline and now have a 13' circle of dirt in the middle of our shady back yard. I'd like to plant creeping charlie or other low growing green perennial that could form the basis of seating area. The problem is I don't know where to find creeping charlie seeds or plugs - any ideas?

I am open to other ideas it needs to be low and walkable, love shade and easy to maintain. I don't need to worry about spreading beyond this area.