The Swamp Sunflower Helianthus angustifolius, is a good choice to add diversity to a pollinator garden because of their lengthy bloom time, summer through fall. These flowers are a great pollinator attractor especially to bees and butterflies during fall season. Over the last month or so, you may have seen these tall, bright yellow flowers growing along the sides of the highway. The swamp sunflower is an herbaceous perennial native to most of Florida. They form mounds between 2-6 ft tall and wide and are cold hardy. The USDA Hardiness Zone are range from 8B – 10.
Swamp sunflower is best planted in full sun, well-draining soils, dry to wet sites and tolerates most soils. You can find more details on the pollinator plant at https://gardeningsolutions.ifas.ufl.edu/plants/ornamentals/swamp-sunflower.html