Originally Posted by King_of_orchid_growing:)
They're pan-tropic weeds. An invasive species. If you don't want a bunch of them, I'd grow that in a pot and monitor it very closely. As in don't ever let them set fruit, or if they do, destroy the fruits (seed pods).
According to Paul Martin Brown, they have become naturalized here and he's say's they can be a nuisance but has no evidence that they are invasive or replacing our native species. I will pot it up and watch it. I have seen them in the wild just didn't expect it in bagged mulch.