I pulled this plant from somebody's yard waste mainly for the pot. Much to my surprise, I added a little soil and watered it and has been growing and blooming for 3 years. It gets droopy when hot and dry (zone 9) but a little water solves this. I need to either repot it or put in ground. Really like it because it blooms most of the summer and is about 24" high.
Les - N. Central Florida