Texas Gardening: Please ID, 0 by sybram

sybram wrote:
I'm considering using some ground cover in my beds this year to help me control the weeds. Someone gave this to me last year, and she has just about an endless supply. She wants me to take it all. She said it's called Vinca (vine or ground cover). Now, I know Vinca, the flower, and the leaves do look alike, but I found nothing in our plant files about this little thing.

I planted two like this under an oak tree, almost all shaded. Hardly watered it at all, and look how healthy it is. The lady said it grows in shade or sun, and I did see it in both at her place.

Anyone have experience with this?