Grows well well north of its native range.  Documented in very southern counties with an outlier in Martin County -- that outlier is also unique in that it was collected near a cypress dome. Closely related to corn, this species has been crossed with maize to produce a corn that is resistant to Helminthosporium turcicum, the fungus that causes northern leaf blight  (Wikipedia). Listed as Threatened in Florida. Informal borders.

Specimen plant, typically forms clumps of stems,the young fan-shaped fronds hide the principal stems. The lower fronds can be removed so that the trunks can be clearly seen. Sometimes used as a street tree.

Rear of garden as a screen.  Native meadows.

Coreopsis is the State wildflower. Cultivated flower beds, wildflower gardens, meadows, and butterfly gardens.