Wow thank you William! No it's not invasive. It's an edible groundcover that's utilizing empty spaces. Now that I know it's a tradescantia I feel even better about it. I regularly
feed spiderwort and Moses in a boat to the rabbits. I may have to bring this smaller variety to other spots to propagate it there instead of having useless ferns.
Awesomeness!
-Chrissy
Http://knottypots.blogspot.com