When should you treat your lawn?
Today's soil temperature for your ZIP code and a lawn care calendar for your exact location: the right weeks for crabgrass preventer, fertilizer and seed. Updated every day from National Weather Service data.
Soil temperature sets the schedule
Lawn products work at specific soil temperatures, not on calendar dates. A warm March brings crabgrass weeks early; a cold spring holds it back. These are the readings that matter, 4 inches down:
Cool-season lawns (fescue, bluegrass, ryegrass) are seeded in late summer and early fall, 6 to 10 weeks before the first frost. LawnWeather estimates soil temperature from daily air temperatures, and typical dates come from the last ten years of NOAA data for your exact location.
Lawn care guides
Lawn care calendar by state
- January
- February
- March
- April
- May
Typical start dates at 311 cities, 2016–2025: from Jan 17 in Mesa, AZ to May 23 in Duluth, MN. Pick a state below for every city's dates.
- Alabama
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Washington, D.C.
- Florida
- Georgia
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming