Five years ago I got a small pot of these “annuals” from my kids school green house. They really aren’t supposed to do this in this zone. But every year even after being sprayed heavily by my husband after I fill my pot, they come back up the next year and bring their friends. This year I decided to just roll with it. They are pretty and bloom for a long time. You can see the pot I started with them in. The first year they filled it nicely but that’s it. Now these picture only show you part of them. They just keep spreading.