Las Vegas, NV Lawn Care Calendar
In a typical year, put down crabgrass preventer in Las Vegas between Feb 3 and Feb 17. The last spring frost usually comes around Feb 5. Most lawns here are cool-season grass (tall fescue, Kentucky bluegrass, ryegrass).
Typical lawn care dates in Las Vegas
| Task | Typical window |
|---|---|
| Crabgrass preventer (pre-emergent)Crabgrass sprouts once soil stays above 55°F. Apply when soil reaches 50°F, before that happens. | Feb 3 – Feb 17 |
| Spring fertilizerA light feeding once soil warms past 55°F and the grass is actively growing. | Feb 10 – Mar 17 |
| Overseeding & seedingLate summer to early fall: seedlings need about 6–10 weeks of growth before the first frost. | — |
| Fall fertilizerThe most important feeding for cool-season grass, from early fall until soil cools to about 45°F. | from Oct 20 |
Median dates, 2016–2025, from NOAA weather data for Las Vegas. This year's dates can differ by a few weeks.
Month-by-month lawn care in Las Vegas
- JanuaryNo treatments due; mow as needed.
- FebruaryCrabgrass preventer (pre-emergent)Spring fertilizer
- MarchSpring fertilizer
- AprilNo treatments due; mow as needed.
- MayNo treatments due; mow as needed.
- JuneNo treatments due; mow as needed.
- JulyNo treatments due; mow as needed.
- AugustNo treatments due; mow as needed.
- SeptemberNo treatments due; mow as needed.
- OctoberFall fertilizer
- NovemberNo treatments due; mow as needed.
- DecemberNo treatments due; mow as needed.
Soil temperature in Las Vegas by month
Average soil temperature 4 inches down, estimated from 2016–2025 weather. It bottoms out in January at 49°F and peaks in July at 95°F. Crabgrass preventer goes down when it reaches 50°F, usually around Feb 3.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 49°F | 53°F | 60°F | 69°F | 77°F | 89°F | 95°F | 93°F | 86°F | 73°F | 60°F | 51°F |
Las Vegas lawn timing, year by year
Over the last 10 years, soil in Las Vegas reached 50°F, the signal for crabgrass preventer, as early as Jan 9 (2022) and as late as Mar 2 (2018): 52 days apart. A fixed calendar date can't follow that, which is why the report above uses this year's soil temperature.
| Year | Crabgrass window opened | Last spring frost | First fall frost |
|---|---|---|---|
| 2025 | Feb 3 | Jan 25 | — |
| 2024 | Jan 21 | Jan 14 | — |
| 2023 | Feb 6 | — | — |
| 2022 | Jan 9 | Jan 4 | Dec 18 |
| 2021 | Feb 3 | — | — |
| 2020 | Jan 21 | Feb 6 | — |
| 2019 | Jan 18 | Feb 24 | Dec 18 |
| 2018 | Mar 2 | Feb 25 | — |
| 2017 | Feb 2 | — | — |
| 2016 | Feb 9 | Feb 5 | Dec 18 |
Estimated from daily temperatures for Las Vegas. A dash means it didn't happen that year.
Frequently asked questions
When should I apply pre-emergent in Las Vegas?
In a typical year, between Feb 3 and Feb 17. 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 Las Vegas?
It depends on your grass type and this year’s soil temperature.
When is the last frost in Las Vegas?
The median last spring frost is Feb 5 (2016–2025).
How long is the growing season in Las Vegas?
Frost is uncommon in Las Vegas, so cool spells rather than freezes set the length of the season.
Lawn care guides
More Nevada lawn calendars
Nearby cities in other states
- St. George, UT 108 miles away · crabgrass preventer Feb 25 – Mar 30
- Prescott, AZ 188 miles away · crabgrass preventer Apr 3 – Apr 30
- Riverside, CA 200 miles away · crabgrass preventer Jan 30 – Feb 8
- Flagstaff, AZ 207 miles away · crabgrass preventer May 15 – Jun 8