This ground cover is as dependable as they come, and it’s adaptable to so many different environments. Lesser Vinca, or periwinkle, is definitely a plant you will want to use in containers and hanging baskets as a trailer, or a ground cover for those areas that need fast cover. 'Ralph Shugert' has a primarily dark green leaf with the slimmest of white edging, giving it a rather elegant look. Violet blue flowers continue from spring into summer, and intermittently in the fall. The more sun, the more flowers.