I dont know much about this but I got it from Home Depot a while back. Its a bedding plant that got overgrown.
I'll try to find out the name, they sell loads of them.
Got these in 2010 but they quickly died or at least were out grown by the weeds. Hopefully it will do better in its second year.
This is doing better than I thought, however, I only realise that after I chopped half of it up!!! Oh well, its still alive and it seems to be woddying up, BUT it doesnt look like much, its really hard not to confuse it with all the other weeds in the garden.