What height to mow Kentucky bluegrass in Indiana?
By LawnYear editorial team · Published · Updated Windows are read from the extension publications listed under Sources; the dates are approximate.
The answer
Purdue University Cooperative Extension Service (1998) gives 2.5 to 3.5 in as the mowing height for Kentucky bluegrass in Indiana. The mowing season shown on this site runs from Apr 1 to Nov 30. Mow at 2.5 to 3.5 in from April, as soon as the lawn greens up, for as long as the grass is growing; do not lower the height for the last mowings. Remove no more than a third of the blade at once. Months are the calendar's April to November entries.
Full calendar: Indiana lawn care calendar · Kentucky bluegrass in other states · Lawn schedule by ZIP
Approximate dates for your state. Check with your local cooperative extension office before you act.
All Indiana windows for Kentucky bluegrass
The Indiana calendar on this site lists seeding Aug 15 to Sep 15, fertilizing May 1 to May 31, Sep 1 to Sep 30 and Nov 1 to Nov 30, weed control Apr 1 to Apr 30 and Oct 1 to Oct 31, mowing Apr 1 to Nov 30 at 2.5 to 3.5 in and watering Jun 1 to Aug 31 for Kentucky bluegrass.
Where the dates come from
Purdue University Cooperative Extension Service: AY-27, Maintenance Calendar for Indiana Lawns (1998); month-by-month calendar for cool-season grasses at high, medium and low maintenance levels. Read on 2026-10-30.
What to check for Indiana
The mowing dates for Kentucky bluegrass above (Apr 1 to Nov 30 at 2.5 to 3.5 in) apply to Indiana as a whole, so the north and south of the state are not told apart.
Other grasses in Indiana
For tall fescue, perennial ryegrass and fine fescue, the Indiana calendar gives Apr 1 to Nov 30 at 2.5 to 3.5 in for mowing.
Mowing Kentucky bluegrass in other states
- Ohio: Apr 1 to Nov 30 at 2 to 2.5 in, per Ohio State University Extension, Lake County (2007) and Ohio State University (Buckeye Turf), 2025.