Salem, OR Lawn Care Calendar
In a typical year, put down crabgrass preventer in Salem between Apr 1 and May 9. The best time to overseed is between Sep 2 and Oct 22. The last spring frost usually comes around Apr 1. Most lawns here are cool-season grass (tall fescue, Kentucky bluegrass, ryegrass).
Typical lawn care dates in Salem
| 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 1 – May 9 |
| Spring fertilizerA light feeding once soil warms past 55°F and the grass is actively growing. | May 2 – Jun 6 |
| Overseeding & seedingLate summer to early fall: seedlings need about 6–10 weeks of growth before the first frost. | Sep 2 – Oct 22 |
| Fall fertilizerThe most important feeding for cool-season grass, from early fall until soil cools to about 45°F. | Jul 16 – Nov 21 |
Median dates, 2016–2025, from NOAA weather data for Salem. This year's dates can differ by a few weeks.
Month-by-month lawn care in Salem
- 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
- JulyFall fertilizer
- AugustFall fertilizer
- SeptemberOverseeding & seedingFall fertilizer
- OctoberOverseeding & seedingFall fertilizer
- NovemberFall fertilizer
- DecemberNo treatments due; mow as needed.
Soil temperature in Salem by month
Average soil temperature 4 inches down, estimated from 2016–2025 weather. It bottoms out in January at 42°F and peaks in August at 71°F. Crabgrass preventer goes down when it reaches 50°F, usually around Apr 1.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 42°F | 42°F | 46°F | 51°F | 57°F | 63°F | 69°F | 71°F | 65°F | 55°F | 47°F | 42°F |
Salem lawn timing, year by year
Over the last 10 years, soil in Salem reached 50°F, the signal for crabgrass preventer, as early as Jan 28 (2024) and as late as Apr 26 (2023): 88 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 1) and first fall frost (Nov 16), the growing season lasts about 229 days.
| Year | Crabgrass window opened | Last spring frost | First fall frost |
|---|---|---|---|
| 2025 | Mar 25 | Feb 15 | Dec 1 |
| 2024 | Jan 28 | Mar 9 | Dec 1 |
| 2023 | Apr 26 | Mar 28 | Oct 29 |
| 2022 | Mar 26 | Apr 18 | Nov 10 |
| 2021 | Apr 16 | Apr 12 | Nov 21 |
| 2020 | Apr 10 | Apr 4 | Oct 26 |
| 2019 | Mar 19 | Mar 15 | Oct 10 |
| 2018 | Apr 7 | Apr 4 | Nov 9 |
| 2017 | Apr 18 | Apr 4 | Dec 5 |
| 2016 | Feb 15 | Feb 24 | Dec 7 |
Estimated from daily temperatures for Salem. A dash means it didn't happen that year.
Frequently asked questions
When should I apply pre-emergent in Salem?
In a typical year, between Apr 1 and May 9. 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 Salem?
Early fall, typically Sep 2 – Oct 22, while soil cools from 65°F toward 50°F.
When is the last frost in Salem?
The median last spring frost is Apr 1 and the median first fall frost is Nov 16 (2016–2025).
How long is the growing season in Salem?
About 229 days, from the median last spring frost on Apr 1 to the median first fall frost on Nov 16 (2016–2025).
Lawn care guides
More Oregon lawn calendars
Nearby cities in other states
- Vancouver, WA 52 miles away · crabgrass preventer Apr 4 – May 9
- Tacoma, WA 162 miles away · crabgrass preventer Apr 17 – May 16
- Yakima, WA 167 miles away · crabgrass preventer Apr 18 – May 6
- Seattle, WA 188 miles away · crabgrass preventer Apr 5 – May 14