Blue Mistflower (Conoclinium coelestinum)

Full sun to part shade
Low to average water needs
Bloom time: Summer- Fall
Size: 1-2 ft tall x 1 ft wide

Readily spreads via seed. Great nectar plants. Attracts bees.
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https://www.fnps.org/plant/conoclinium-coelestinum
https://florida.plantatlas.usf.edu/Plant.aspx?id=935