Was searching for a discussion about this plant and I think this is the only one. Hope nobody minds my dredging it back up, but I'm curious if your plant is still alive, Ginger? I've been fascinated with this plant since I noticed it growing in the cracks & edges of pavement a few years ago. Amazing plant, awesome cute native! So I grabbed a few pieces from the parking lot across the street last summer and have it in several pots now. Any morning with one or more of those miniscule pink flowers just cheers me up like no 'regular' flower can, weird. Like you did, I'm trying to get it to solidly cover the surface of taller potted plants that get a ton of sun. Maybe I will leave some of it alone somewhere long enough to look as amazing as your pic. Is it the kind of plant that ever has a bunch of flowers open at once?
It's also cool for this kind of thing!