Vinca is an evergreen groundcover that has glossy dark green leaves and blue, lavender or white flowers. It creates a mat in shady spaces, which can be very helpful if you are trying to cover a shady spot with green and nothing else will take. However, even though it's very common and available at most nurseries, it is classified as an invasive species because it is hard to get rid of once you plant it.
Conditions: Partial sun to Full Shade
Bloom: Late Spring to Early Summer
Size: 4"-6" spreading to 18" wide