LawnWeather

Utah Lawn Care Calendar

In Utah, crabgrass preventer typically goes down between Feb 25 and May 20: first in St. George, last in Logan. Below are typical fertilizer, seeding and frost dates for Salt Lake City, Provo, St. George, Ogden and Logan, from 2016–2025 weather data. Enter your ZIP code for this year's timing.

When to apply pre-emergent in Utah

Typically between Feb 25 and May 20, depending on where you live. The window opens first in St. George (around Feb 25) and last in Logan (around Apr 25). Apply when soil reaches 50°F, before it stays above 55°F.

CityCrabgrass preventer window
St. GeorgeFeb 25 – Mar 30
Salt Lake CityApr 6 – May 3
ProvoApr 17 – May 9
OgdenApr 17 – May 11
LoganApr 25 – May 20

Cool-season lawn calendar

Lawns across Utah are mostly cool-season grass (tall fescue, Kentucky bluegrass, perennial ryegrass).

CitySpring fertilizerOverseeding & seedingFall fertilizer
Salt Lake CityApr 26 – May 31Aug 12 – Oct 1Sep 19 – Nov 8
ProvoMay 2 – Jun 6Aug 3 – Sep 22Sep 10 – Nov 2
St. GeorgeMar 23 – Apr 27Aug 28 – Oct 17Oct 8 – Dec 1
OgdenMay 4 – Jun 8Aug 11 – Sep 30Sep 10 – Nov 3
LoganMay 13 – Jun 17Jul 30 – Sep 18Aug 24 – Oct 25

Frost dates in Utah

CityLast spring frostFirst fall frost
Salt Lake CityApr 7Oct 26
ProvoApr 19Oct 17
St. GeorgeMar 3Nov 11
OgdenApr 19Oct 25
LoganMay 6Oct 13

Median dates, 2016–2025. A dash means frost does not occur in most years.

Frequently asked questions

When should I put down pre-emergent in Utah?

Typically between Feb 25 and May 20, depending on where you live. The window opens first in St. George (around Feb 25) and last in Logan (around Apr 25). Apply when soil reaches 50°F, before it stays above 55°F.

When is the best time to seed grass in Utah?

Early fall is best for cool-season grass (tall fescue, Kentucky bluegrass, perennial ryegrass): typically from Jul 30 to Oct 17 across Utah, while soil cools from 65°F toward 50°F.

What type of grass grows in Utah?

Most lawns in Utah are cool-season grass (tall fescue, Kentucky bluegrass, perennial ryegrass).

Lawn care guides

Other states