Vinca minor makes a wonderful groundcover in the right setting. I use a variegated form in my woodland garden and it has formed a dense, weedproof mat about 8-10" thick. For best results IME, it needs a rather good soil, part shade and regular watering. Be advised that many folks find vinca rather aggressive and planting it in an area where it can creep into natural areas should probably be avoided. I find it extremely easy to remove if it reaches further than wanted, fully evergreen in my climate and covered with perwinkle blue flowers in late spring.