| City | Seed / establish | Pre-emergent | Season |
|---|
| Jacksonville | Feb 15 – Mar 1 | Jan 11 – Feb 1 | 338 days |
| Orlando | Jan 31 – Feb 14 | Dec 27 – Jan 17 | 361 days |
| Tampa | Feb 3 – Feb 17 | Dec 30 – Jan 20 | 357 days |
| Miami | Feb 24 – Mar 10 * | Jan 20 – Feb 10 * | Year-round |
* effectively frost-free — typical regional window rather than a frost-anchored one.
All Florida station records (136)
Every NOAA weather station in Florida with complete 1991–2020 frost normals — pick
the one nearest you (similar elevation matters more than plain distance).
Not sure which station to trust? Use the
ZIP code lookup
for the quick answer, or pick the station whose terrain most resembles your yard.
Lawn timing geography of Florida
Across the 139 Florida locations with complete 1991–2020 frost
normals, the average last spring frost — the anchor for pre-emergent and spring
work — ranges from Jan 15 (Sarasota Bradenton Airport) to Mar 21
(Crestview Bob Sikes Airport), a spread of about 9 weeks driven by elevation, latitude, and terrain.
The same job can be weeks apart at opposite ends of the state, which is why a
state-level date is only a starting point — pick the location nearest your yard and
plan from its calendar.
The Florida lawn year in one paragraph
The Florida lawn year lives in the warm months: pre-emergent in late winter before soil crosses 55°F, establishment and the first feeding after full green-up, aeration in the heat of active growth, and steady mowing all summer. The discipline that separates good southern lawns is the stop date — no nitrogen within 6–8 weeks of first frost, so the lawn hardens off and goes dormant on schedule. Details by task: when to overseed in Florida, when to aerate in Florida, when to apply crabgrass pre-emergent in Florida, and more above.