Rochester, MN Lawn Care Calendar
In a typical year, put down crabgrass preventer in Rochester between Apr 20 and May 16. The best time to overseed is between Jul 31 and Sep 19. The last spring frost usually comes around Apr 28. Most lawns here are cool-season grass (tall fescue, Kentucky bluegrass, ryegrass).
Typical lawn care dates in Rochester
| Task | Typical window |
|---|---|
| Crabgrass preventer (pre-emergent)Crabgrass sprouts once soil stays above 55°F. Apply when soil reaches 50°F, before that happens. | Apr 20 – May 16 |
| Spring fertilizerA light feeding once soil warms past 55°F and the grass is actively growing. | May 9 – Jun 13 |
| Overseeding & seedingLate summer to early fall: seedlings need about 6–10 weeks of growth before the first frost. | Jul 31 – Sep 19 |
| Fall fertilizerThe most important feeding for cool-season grass, from early fall until soil cools to about 45°F. | Aug 3 – Oct 29 |
Median dates, 2016–2025, from NOAA weather data for Rochester. This year's dates can differ by a few weeks.
Month-by-month lawn care in Rochester
- JanuaryNo treatments due; mow as needed.
- FebruaryNo treatments due; mow as needed.
- MarchNo treatments due; mow as needed.
- AprilCrabgrass preventer (pre-emergent)
- MayCrabgrass preventer (pre-emergent)Spring fertilizer
- JuneSpring fertilizer
- JulyOverseeding & seeding
- AugustOverseeding & seedingFall fertilizer
- SeptemberOverseeding & seedingFall fertilizer
- OctoberFall fertilizer
- NovemberNo treatments due; mow as needed.
- DecemberNo treatments due; mow as needed.
Soil temperature in Rochester by month
Average soil temperature 4 inches down, estimated from 2016–2025 weather. It bottoms out in January at 17°F and peaks in July at 72°F. Crabgrass preventer goes down when it reaches 50°F, usually around Apr 20.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 17°F | 19°F | 33°F | 43°F | 57°F | 69°F | 72°F | 70°F | 64°F | 51°F | 36°F | 24°F |
Rochester lawn timing, year by year
Over the last 10 years, soil in Rochester reached 50°F, the signal for crabgrass preventer, as early as Apr 6 (2021) and as late as May 7 (2022): 31 days apart. A fixed calendar date can't follow that, which is why the report above uses this year's soil temperature. Between the typical last spring frost (Apr 28) and first fall frost (Oct 14), the growing season lasts about 169 days.
| Year | Crabgrass window opened | Last spring frost | First fall frost |
|---|---|---|---|
| 2025 | Apr 28 | Apr 17 | Oct 24 |
| 2024 | Apr 14 | Apr 24 | Oct 15 |
| 2023 | Apr 11 | Apr 26 | Oct 11 |
| 2022 | May 7 | Apr 28 | Sep 28 |
| 2021 | Apr 6 | May 11 | Oct 23 |
| 2020 | Apr 26 | May 9 | Oct 16 |
| 2019 | Apr 22 | Apr 28 | Oct 12 |
| 2018 | May 1 | Apr 29 | Sep 29 |
| 2017 | Apr 15 | Apr 28 | Oct 27 |
| 2016 | Apr 16 | May 15 | Oct 8 |
Estimated from daily temperatures for Rochester. A dash means it didn't happen that year.
Frequently asked questions
When should I apply pre-emergent in Rochester?
In a typical year, between Apr 20 and May 16. Put it down when soil reaches 50°F, before it stays above 55°F and crabgrass starts sprouting. Early springs move this up by a week or more, so check this year's soil temperature above.
When is the best time to plant grass seed in Rochester?
Early fall, typically Jul 31 – Sep 19, while soil cools from 65°F toward 50°F.
When is the last frost in Rochester?
The median last spring frost is Apr 28 and the median first fall frost is Oct 14 (2016–2025).
How long is the growing season in Rochester?
About 169 days, from the median last spring frost on Apr 28 to the median first fall frost on Oct 14 (2016–2025).
Lawn care guides
More Minnesota lawn calendars
Nearby cities in other states
- La Crosse, WI 63 miles away · crabgrass preventer Apr 20 – May 10
- Eau Claire, WI 72 miles away · crabgrass preventer Apr 23 – May 15
- Cedar Rapids, IA 147 miles away · crabgrass preventer Apr 17 – Apr 30
- Madison, WI 167 miles away · crabgrass preventer Apr 20 – May 16