Pueblo, CO Lawn Care Calendar
In a typical year, put down crabgrass preventer in Pueblo between Apr 8 and May 4. The best time to overseed is between Jul 31 and Sep 19. The last spring frost usually comes around Apr 24. Most lawns here are cool-season grass (tall fescue, Kentucky bluegrass, ryegrass).
Typical lawn care dates in Pueblo
| 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 8 – May 4 |
| Spring fertilizerA light feeding once soil warms past 55°F and the grass is actively growing. | Apr 27 – Jun 1 |
| 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. | Sep 11 – Nov 7 |
Median dates, 2016–2025, from NOAA weather data for Pueblo. This year's dates can differ by a few weeks.
Month-by-month lawn care in Pueblo
- JanuaryNo treatments due; mow as needed.
- FebruaryNo treatments due; mow as needed.
- MarchNo treatments due; mow as needed.
- AprilCrabgrass preventer (pre-emergent)Spring fertilizer
- MayCrabgrass preventer (pre-emergent)Spring fertilizer
- JuneSpring fertilizer
- JulyOverseeding & seeding
- AugustOverseeding & seeding
- SeptemberOverseeding & seedingFall fertilizer
- OctoberFall fertilizer
- NovemberFall fertilizer
- DecemberNo treatments due; mow as needed.
Soil temperature in Pueblo by month
Average soil temperature 4 inches down, estimated from 2016–2025 weather. It bottoms out in January at 31°F and peaks in July at 77°F. Crabgrass preventer goes down when it reaches 50°F, usually around Apr 8.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 31°F | 34°F | 43°F | 50°F | 59°F | 71°F | 77°F | 75°F | 69°F | 55°F | 43°F | 35°F |
Pueblo lawn timing, year by year
Over the last 10 years, soil in Pueblo reached 50°F, the signal for crabgrass preventer, as early as Mar 16 (2017) and as late as Apr 20 (2022): 35 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 24) and first fall frost (Oct 14), the growing season lasts about 173 days.
| Year | Crabgrass window opened | Last spring frost | First fall frost |
|---|---|---|---|
| 2025 | Mar 26 | Apr 21 | Oct 19 |
| 2024 | Apr 13 | Apr 12 | Oct 27 |
| 2023 | Apr 10 | Apr 24 | Oct 14 |
| 2022 | Apr 20 | May 21 | Oct 18 |
| 2021 | Apr 4 | Apr 24 | Oct 16 |
| 2020 | Apr 8 | Apr 19 | Sep 9 |
| 2019 | Apr 6 | Apr 19 | Oct 10 |
| 2018 | Apr 17 | Apr 27 | Oct 14 |
| 2017 | Mar 16 | May 1 | Oct 10 |
| 2016 | Apr 5 | May 2 | Oct 7 |
Estimated from daily temperatures for Pueblo. A dash means it didn't happen that year.
Frequently asked questions
When should I apply pre-emergent in Pueblo?
In a typical year, between Apr 8 and May 4. 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 Pueblo?
Early fall, typically Jul 31 – Sep 19, while soil cools from 65°F toward 50°F.
When is the last frost in Pueblo?
The median last spring frost is Apr 24 and the median first fall frost is Oct 14 (2016–2025).
How long is the growing season in Pueblo?
About 173 days, from the median last spring frost on Apr 24 to the median first fall frost on Oct 14 (2016–2025).
Lawn care guides
More Colorado lawn calendars
Nearby cities in other states
- Santa Fe, NM 192 miles away · crabgrass preventer Apr 19 – May 14
- Cheyenne, WY 200 miles away · crabgrass preventer May 12 – Jun 8
- Garden City, KS 204 miles away · crabgrass preventer Apr 7 – May 1
- Laramie, WY 218 miles away · crabgrass preventer May 20 – Jun 11