That Purple Thing, II

So, I wrote about the Purple Thing a while back, here. I speculated that what I had on my hands was an Aster. However... I think I need to reevaluate my diagnosis.

After stumbling across a link, here, the phrase, "It's an osteo that doesn't close; its double blooms stay open all day and night.." really stuck out to me. I was never totally satisfied with labeling the purple thing as an Aster, as the bloom times were all off and the link didn't mention anything about the flowers closing like they do. 

So. There we go. I think I have an African Trailing Daisy, which is surprising because it's out of its hardiness zone. It only blooms in winter for me, but what a show!