Blue porterweed is one of the most popular of South Florida’s butterfly attracting plants, with brilliant blue flowers appearing partway up the funky, swirly, upright stems.
These are informal, somewhat sprawling plants with cottage-garden appeal. They look their best in a casual setting such as a mix of flowering plants and/or in butterfly gardens. The flowers appear on and off all year, usually more during warmer months.
Source: South Florida Plant Guide