Florida grows warm-season grass on a year-round clock, which makes it the opposite of the cool-season North in almost every way. St. Augustine dominates Florida lawns, with Bahia on larger and drier lots, plus zoysia, Bermuda, and centipede in the mix. The grass barely goes dormant in the southern half of the state, so there's no real off-season — there's a hot, rainy growing surge from summer into early fall and a slower, cooler stretch in winter.
Two things make the Florida calendar unusual. The first is the summer fertilizer blackout: most Florida counties legally ban applying nitrogen and phosphorus fertilizer during the rainy season — typically June 1 through September 30 — to keep nutrients out of the waterways and springs. That flips the normal logic. You feed in spring and again in fall, but you do NOT feed during the peak growing months, even though the grass is roaring. Check your county's exact dates, because they vary.
The second is pests and disease. Florida's heat and humidity make chinch bugs the number-one St. Augustine killer — they create expanding yellow-then-brown patches that look like drought but won't respond to water. Add in sod webworms, gray leaf spot, and large patch fungus, and pest scouting becomes a core part of the calendar rather than an afterthought. Water management matters too: many districts impose year-round watering-day restrictions, so a smart controller that makes the most of your allowed days earns its keep fast.
Compare similar calendar patterns
Florida is in the warm-season south group. These states follow similar seasonal logic, though local soil, elevation, and weather still matter.
Calendars are general regional guidance for The Lawn Report. Local microclimates, soil, and current weather always come first.