Many folks in my neighborhood have planted Creeping Phlox in their flower beds this spring, and they look great. In an effort to keep up with the Jones, I went out and purchased 18 potted Creeping Phlox from a garden center. I want to plant them in a sunny area of my flower bed in the front of my home. I've never planted anything outside (in NC) before, so I'm a little nervous about it. Any advice would be appreciate.