Lawn care, explained by soil temperature.
Most lawn advice says "early spring." Your soil doesn't read calendars — these guides tell you the actual trigger for each task, and our free alerts tell you the week it happens in your ZIP.
Fall vs. Spring Pre-Emergent: Do You Need Both?
Fall and spring pre-emergent target different weeds. Learn which application you actually need, when soil temps say go, and how to split a budget.
When to Apply Fall Pre-Emergent in Kansas
Apply fall pre-emergent in Kansas when soil temps hit 70°F and falling, usually mid-September. Here's the timing by region and the overseeding conflict.
When to Apply Fall Pre-Emergent in California
California fall pre-emergent timing by region: Central Valley in October, SoCal inland late October, coast in November, mountains in September.
When to Apply Fall Pre-Emergent in Arizona
Arizona fall pre-emergent timing: apply when soil hits 70°F falling, mid-October in Phoenix, earlier in Tucson and Flagstaff. Plus the overseed catch.
When to Apply Fall Pre-Emergent in Florida
Fall pre-emergent timing for Florida lawns: apply when soil temps hit 70°F falling. North FL in October, Central FL in November. Stop winter weeds and burweed.
When to Apply Fall Pre-Emergent in Oklahoma
Fall pre-emergent goes down in Oklahoma when soil temps hit 70°F and falling, usually late September. Timing by city, watering-in, and Poa control.
When to Apply Fall Pre-Emergent in Alabama
Fall pre-emergent timing for Alabama lawns: apply when soil hits 70°F and falling—late Sept in Huntsville, mid-Oct near Mobile. Full state guide.
When to Apply Fall Pre-Emergent in South Carolina
Apply fall pre-emergent in South Carolina when soil hits 70°F and falling - late September upstate, mid-October on the coast. Get the timing right.
When to Apply Fall Pre-Emergent in Tennessee
Fall pre-emergent timing for Tennessee lawns. Apply when soil hits 70°F and falling - mid-September in Nashville, earlier in Knoxville, later in Memphis.
Winterizer Fertilizer: When to Apply It (and When to Skip It)
Apply winterizer to cool-season grass when soil hits 45-50°F and falling, right around your last mow. Warm-season lawns should skip it entirely.
When Is It Too Late to Plant Grass Seed in the Fall?
The fall cutoff for grass seed is 6-8 weeks before your first frost with soil above 50°F. Find your state's deadline and the dormant seeding fallback.
Fall Lawn Care for Warm-Season Grass: The Right Order of Operations
The fall to-do list for Bermuda, zoysia, and St. Augustine: last feeding 6 weeks before frost, poa pre-emergent at 70F, and what to skip.
Fall Lawn Care Order of Operations for Cool-Season Lawns
The exact fall lawn care sequence for cool-season grass, driven by soil temperature: aerate and overseed at 50-65F, then feed, then winterize.
When to Apply Grub Preventer: The 60–70°F Soil Rule
Apply grub preventer when soil hits 60–70°F. Chlorantraniliprole goes down May–June, imidacloprid June–July. Timing by region, plus too-late signs.
Soil Temperature for Grass Seed Germination by Grass Type
Cool-season grass germinates at 50-65°F soil temp; bermuda needs 65-70°F and zoysia 70°F+. Exact seeding temps by grass type, plus dormant seeding.
What Soil Temperature Does Poa Annua Germinate? (Fall Weed Timing Guide)
Poa annua germinates as fall soil temps drop below 70°F. Learn the exact threshold, why it's fall's crabgrass, and how to time pre-emergent around overseeding.
Prodiamine vs. Dithiopyr vs. Pendimethalin: Which Fits Your Application Window
Pick the right pre-emergent by your timing. Prodiamine for early and long residual, dithiopyr if you're late, pendimethalin on a budget.
GDD vs. Soil Temperature for Pre-Emergent Timing: Which Should You Use?
Soil temperature is the practical pre-emergent signal for homeowners. GDD is more precise but fussy. Here's how each works and when to use them.
When to Apply Crabgrass Pre-Emergent in Missouri
Missouri crabgrass pre-emergent timing by soil temperature. Kansas City, St. Louis, and Springfield windows for the transition zone with fescue and zoysia.
When to Apply Crabgrass Pre-Emergent in Virginia
The exact weeks to apply crabgrass pre-emergent in Virginia by region and grass type. Time it to 55F soil temps before crabgrass germinates.
When to Apply Crabgrass Pre-Emergent in Pennsylvania
Crabgrass pre-emergent in PA goes down when soil hits 55°F for 3 days straight - roughly early April in Philly, mid-to-late April in Pittsburgh and Erie.
When to Apply Crabgrass Pre-Emergent in Ohio
Ohio crabgrass pre-emergent timing by region. Apply before soil hits 55°F for 3 days straight—usually mid-April. Why forsythia is a rough guide at best.
Can You Overseed After Applying Pre-Emergent? The 8–16 Week Rule
How long to wait to overseed after pre-emergent by active ingredient. Prodiamine needs 16 weeks, dithiopyr 12, and mesotrione lets you seed same day.
Dethatch, Aerate, Overseed, Pre-Emergent: The Right Order (and Soil Temps for Each)
The correct order is dethatch, aerate, then overseed - and pre-emergent comes last, or not at all if you seeded. Here are the soil temps for each.
Crabgrass Germination Temperature: The 55°F Rule Explained
Crabgrass germinates when soil hits 55°F at 2 inches for 3–5 days. Learn the exact threshold, GDD timing, and when to apply pre-emergent.
When to Apply Fall Pre-Emergent in North Carolina
Apply fall pre-emergent in North Carolina when soil temps hit 70°F falling - roughly mid-September Piedmont, early October coast. Timing by region.
When to Apply Fall Pre-Emergent in Texas
Apply fall pre-emergent in Texas when soil temps hit 70F and dropping - DFW mid-Sept, Houston/Austin early Oct. Poa annua and winter weed timing by region.
When to Apply Fall Pre-Emergent in Georgia
Fall pre-emergent timing for Georgia lawns. Apply when soil hits 70°F and falling - early to mid September in most of the state. Region-by-region dates.
How to Measure Your Lawn's Soil Temperature (and When You Don't Have To)
Measure your lawn's soil temperature at 2 inches deep, mid-morning, for 3 straight days. Or skip the thermometer and use a free live ZIP lookup.
Soil Temperature vs. Air Temperature: Why Your Lawn Doesn't Care About the Forecast
Soil temperature, not air temperature, controls when weeds sprout and grass grows. Here's why the 2-inch reading beats the forecast every time.
Why Your Pre-Emergent Didn't Work: The Timing Mistake Most Homeowners Make
Crabgrass broke through your pre-emergent? The usual cause is timing. Here's how soil temperature explains the failure and how to fix it next season.
Is It Too Late to Apply Pre-Emergent? A Soil-Temperature Answer
Pre-emergent works until soil hits 55°F for spring crabgrass. Learn the exact soil-temp cutoffs, germination math, and what to do if you missed the window.
When to Apply Fall Pre-Emergent: The 70°F-and-Falling Soil Rule
Fall pre-emergent goes down when soil temps fall toward 70°F for 3 straight days. Get the state-by-state timing table and stop poa annua before it sprouts.