The defining characteristic of the weather in the third region, South Florida, is heat. Freezes are rare, particularly the more south you get, and the soil changes too, Alvarez says. “It becomes very rocky with swampy areas, and the center of the state used to be Everglades, much of which is now developed.”

Night temperatures don’t drop as much as elsewhere in the state. That means what are houseplants in the rest of the country are year-round outdoor plants in South Florida. “There’s a wide difference in plant material, even from North Florida,” Alvarez says. “It’s much more tropical.”