Tropical Hibiscus, Hibiscus rosa-sinensis: Tropical hibiscus grows permanently in the landscape in warmer U.S. Dept of Agriculture zones 9 through 11, unless they are taken indoors in winter. Outdoors, one freeze – below 25 degrees Fahrenheit – will kill them A hibiscus flower usually has five petals (a single hibiscus).
I cut a few yellow hibiscus with leaves and put them in an antique sugar bowl. Even though September isn’t that different than summer here in central Florida, I am doing my own little nod to fall colors with yellow flowers and a beautiful antique container with a pattern in goldish brown with pastels.