If you're looking for a low-maintenance, low-profile, quickly growing ground cover with a long bloom season, consider Blue Star Creeper.
Tiny green leaves of Laurentia - Blue Star Creeper - form a low, dense mat that is evergreen in warmer climates or semi-evergreen in cooler ones. Small, light blue flowers bloom from spring to fall. Mature height is 3 inches. Spreads to 18 inches.
Blue Star Creeper is often used in container gardens where it forms a nice mat beneath taller plant subjects, and it makes an effective ground cover beneath small deciduous trees, landscape shrubs and other perennials. It grows densely enough when established to smother many less aggressive weeds.