Your lawn, right now, in Greene County, Ohio
This month in Greene County
Pick the current month on the wheel or in the list below to see what to do.
Rest the lawn and get the mower ready.
- Service the mowerChange the oil, replace the air filter, clean the spark plug and sharpen the blade before spring.
- Note any snow moldPink snow mold is the most common kind in Ohio. Rake matted patches lightly in spring.
- Plan the yearSeeding and most feeding happen in September. Crabgrass preventer goes down in spring by soil temperature.
Dormant seeding can fill thin spots.
- Consider dormant seedingSpread seed on thin spots when the soil isn't frozen, and cover or mulch it.
- Finish mower serviceSharpen the blade now so the first cut in March is clean.
- Start watching soil temperatureCrabgrass preventer timing depends on it. The reading is free online.
Clean up and watch the soil thermometer.
- Clean up leftover leavesRake or mow the leaves still sitting on the lawn.
- Check soil temperatureCrabgrass preventer goes down when 2-inch soil reaches about 50°F, usually around forsythia bloom.
- Mow when it growsStart mowing once the grass is growing, at 3 to 4 inches.
Crabgrass preventer goes down by soil temperature.
- Apply crabgrass preventerWhen 2-inch soil temperature reaches about 50°F. Early April usually beats March.
- Light spring feeding0.5 to 1 pound of nitrogen per 1,000 square feet, mostly slow release.
- Mow at 3 to 4 inchesMow at least weekly; twice a week when the grass is growing fast.
Mow high and leave the clippings.
- Mow at 3 to 4 inchesTake off no more than a third of the blade each time.
- Leave the clippingsThey supply up to 30 percent of the lawn's nitrogen for the season.
- Last call for spring feedingOSU doesn't recommend fertilizing in summer heat.
Keep the mower high as the heat builds.
- Keep mowing highThe top of the 3 to 4 inch range helps the lawn through heat.
- Skip fertilizerThe next feeding is in September.
- Water only when it wiltsEarly morning, before 9 a.m.
Water it or let it go dormant.
- Choose: water or dormancyKentucky bluegrass can sit dormant through four to six weeks of drought.
- Don't mow a stressed lawnWait until it recovers, and keep foot traffic off.
- Grubs lay eggs nowJuly is egg-laying month for most Ohio grubs.
Scout for grubs and get ready to seed.
- Scout for grubsTen or more per square foot can kill turf. A few are no problem.
- Seeding season opensLate August into September is the best time to seed or overseed.
- Early fall feeding can startLate August through September.
The best month of the year to seed and feed.
- Seed or overseedOSU says any time in September works in central and southern Ohio.
- Feed the lawnMost of the year's fertilizer belongs in September and October.
- Last grub checkEarly to mid September is the time for grub control.
Feed, finish seeding, and treat weeds late in the month.
- Finish seeding by October 30After that, OSU says to wait for spring.
- Treat broadleaf weeds late in the monthFall control can last up to a year.
- Mow the leaves into the lawnRun the mower over them in two directions.
Chop the leaves and make the last mow.
- Keep chopping leavesMow them in weekly, or rake and compost the extra.
- Mow while it growsKeep going until the grass stops.
- Early November weed controlThe fall weed window closes this month.
Put the mower away.
- Clear the last leavesA mat of leaves over winter can kill the grass under it.
- Last mow if neededOnly if the grass is still growing.
- Put the mower awayService it now or in late winter.
The sun marks this month. Tap any month for its page.
The whole year, month by month
Southwest Ohio is cool-season grass country, close to where the transition zone begins. For the grasses OSU recommends here, the big jobs (seeding and most feeding) land in September and October. Spring work runs by soil temperature more than by the date.
- Jan Rest the lawn and get the mower ready Service the mower
- Feb Dormant seeding can fill thin spots Consider dormant seeding
- Mar Clean up and watch the soil thermometer Clean up leftover leaves
- Apr Crabgrass preventer goes down by soil temperature Apply crabgrass preventer
- May Mow high and leave the clippings Mow at 3 to 4 inches
- Jun Keep the mower high as the heat builds Keep mowing high
- Jul Water it or let it go dormant Choose: water or dormancy
- Aug Scout for grubs and get ready to seed Scout for grubs
- Sep The best month of the year to seed and feed Seed or overseed
- Oct Feed, finish seeding, and treat weeds late in the month Finish seeding by October 30
- Nov Chop the leaves and make the last mow Keep chopping leaves
- Dec Put the mower away Clear the last leaves
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Seeding | not in season | in season | in season, depends on soil temperature | not in season | not in season | not in season | not in season | in season | best window | in season | not in season | not in season |
| Fertilizer | not in season | not in season | not in season | in season | in season | not in season | not in season | not in season | best window | best window | not in season | not in season |
| Crabgrass preventer | not in season | not in season | in season, depends on soil temperature | best window | not in season | not in season | not in season | not in season | not in season | not in season | not in season | not in season |
| Grub prevention | not in season | not in season | not in season | in season | in season | in season | in season | in season | not in season | not in season | not in season | not in season |
| Grub rescue treatment | not in season | not in season | not in season | not in season | not in season | not in season | not in season | in season | best window | not in season | not in season | not in season |
| Broadleaf weeds | not in season | not in season | not in season | in season | in season | not in season | not in season | not in season | not in season | best window | best window | not in season |
| Core aeration | not in season | not in season | not in season | in season | in season | not in season | not in season | not in season | in season | in season | not in season | not in season |
| Leaves | not in season | not in season | in season | not in season | not in season | not in season | not in season | not in season | not in season | best window | best window | in season |
- Best window
- In season
- Start depends on soil temperature
- This month
Swipe sideways to see the whole year.
Windows from Natural Organic Lawn Care (HYG-4031), including its lawn care calendar for Ohio, Seed Establishment in Fall (November 2024), Early Spring Lawn Care (March 2025), Efficient Lawn Care Practices to Help Protect Ohio's Waterways (HYG-5812), Should We Rethink Fall Fertilization? (November 2024), Annual Grassy Weed Control (March 2025), Buckeye Turf Newsletter, Winter 2025-2026, Japanese Beetle (ENT-46), BYGL Turfgrass Team Times (September 4, 2026), Wait Until Late October to Control Perennial Broadleaf Weeds (October 2024), Mid-Spring Weed Control Reminders (May 2025) (checked 2026-10-26). OSU’s Ohio lawn calendar notes that timing in southern Ohio may be 10 to 14 days earlier than in central Ohio, so use the month pages and soil temperature for exact timing.
Local basics
Four things worth knowing about lawns in Greene County. Sources and details are on the local notes page.
- April 16Median last spring frost
- First fall frost: October 28. NOAA 1991 to 2020 normals for Dayton International Airport.
- Silt loamMost common soil
- Miamian soils cover about a quarter of the county. Low, flat ground tends toward poorly drained silty clay loam.
- Cool seasonGrass types
- OSU recommends tall fescue, Kentucky bluegrass, perennial ryegrass and fine fescue for Ohio lawns.
- From $30Soil test in Xenia
- OSU Extension Greene County tests lawn soil. Results come with lime and fertilizer recommendations.
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