Perennial, maintenance free flower bed.
Accenting mailboxes is a big thing in my area but with a strong western exjposure, I had trouble with flowers in our drought ridden summers. I decided to try a group of grasses and non flowering plants....dusty miller, varigated liriope and darker grass (can't remember its name). Keep the dusty miller trimmed back and then trim down the others before they have spring regrowth. I accented with a few gerber daisies for color.