Kentucky is transition-zone turf country — tall fescue and kentucky bluegrass alongside bermuda and zoysia. Click a city for its full month-by-month calendar.
| City | Aerate + overseed | Pre-emergent | Season |
|---|---|---|---|
| Louisville | Sep 10 – Sep 25 | Mar 10 – Mar 31 | 223 days |
| Lexington | Aug 29 – Sep 13 | Mar 23 – Apr 13 | 198 days |
Every NOAA weather station in Kentucky with complete 1991–2020 frost normals — pick the one nearest you (similar elevation matters more than plain distance).
Across the 97 Kentucky locations with complete 1991–2020 frost normals, the average last spring frost — the anchor for pre-emergent and spring work — ranges from Mar 27 (Eddyville 5S) to May 2 (Grayson 3 SW), a spread of about 5 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.
Kentucky lawns run on two opposite calendars. Tall fescue and bluegrass lawns treat early fall as the main event — aerate, overseed, feed — with spring for pre-emergent and light feeding. Bermuda and Zoysia lawns flip it: establish and feed from late spring through summer, stop nitrogen 6–8 weeks before frost, and accept winter brown as normal. Identify your grass first; every date on this page depends on it. Details by task: when to overseed in Kentucky, when to aerate in Kentucky, when to apply crabgrass pre-emergent in Kentucky, and more above.