MowGuide

When to Start Mowing in Spring (By Region)

The first mow of spring isn’t about the calendar — it’s about the grass. Mow too early and you stress dormant turf. Wait too long and you’re hacking through a jungle that shocks the lawn. Getting the timing right sets the tone for your entire season.

Here’s when to start mowing based on where you live and what you’re growing.

Disclosure: MowGuide earns from qualifying Amazon purchases. See our affiliate disclosure.

The Simple Rule

Start mowing when your grass is actively growing and reaches about 3-4 inches tall. Don’t go by the date. Go by the grass.

Signs your grass is ready:

Regional Timing Guide

Southeast (FL, GA, AL, MS, LA, SC, coastal NC)

South Central (TX, OK, AR, TN, inland NC)

Mid-Atlantic (VA, MD, DE, PA, NJ, southern NY)

Midwest (OH, IN, IL, MI, WI, MN, IA, MO)

Northeast (NY, CT, MA, VT, NH, ME)

Pacific Northwest (WA, OR)

Mountain West (CO, UT, MT, WY, ID)

Southwest (AZ, NM, southern NV)

How to Check Soil Temperature

Don’t guess. Measure.

A soil thermometer costs under $15 and removes all uncertainty. Push it 2-4 inches into the soil in a sunny area of your lawn and check morning temps for several consecutive days.

Key soil temperature thresholds:

Free online tools like GreenCast Soil Temperature Maps can give you a regional estimate, but your yard may differ.

First Mow Best Practices

1. Mow High on the First Cut

Set your deck one notch higher than your normal mowing height. The first mow removes winter-damaged tips without stressing newly emerging growth. Drop to your normal height on the second or third mow.

2. Make Sure Your Blade Is Sharp

A dull blade tears grass instead of cutting it, leaving ragged brown tips that are vulnerable to disease. Sharpen or replace your mower blade before the first mow every season. If you’re shopping for a new mower, see our mower buying guide.

3. Don’t Mow Wet Grass

Wait for the lawn to dry. Wet grass clumps, clogs your mower, and results in an uneven cut. Morning dew usually burns off by mid-morning.

4. Bag the First Mow (Maybe)

If there’s significant debris, leaves, or dead material, bagging the first cut removes it and lets sunlight reach new growth. After the first mow, switch to mulching for the rest of the season.

5. Apply Pre-Emergent After the First Mow

Your first mow is a great trigger for applying crabgrass pre-emergent. The timing usually lines up well — when cool-season grass is growing enough to mow, soil temps are approaching 55°F, which is when crabgrass seeds start germinating.

Spring Mowing Schedule

Once you start, how often should you mow?

Follow the one-third rule: Never remove more than one-third of the grass blade height in a single mowing. If your target height is 3 inches, mow when the grass reaches 4-4.5 inches.

In spring, cool-season grasses grow fast — you may need to mow twice a week during peak growth in April and May. This slows to weekly by summer.

Warm-season grasses ramp up more gradually and peak in June-August.

The Spring Lawn Care Sequence

Timing your first mow is just one piece. Here’s the full spring order of operations:

  1. Clean up — rake debris and dead material
  2. Soil test — check pH and nutrients (see Best Soil Test Kits)
  3. First mow — high setting, sharp blade
  4. Pre-emergent — within a week of first mow
  5. Fertilize — 2-3 weeks after greenup (see Best Spring Fertilizers)
  6. Address bare spots — overseed or patch (see Lawn Patch & Repair Products)

For the complete checklist, see our Spring Lawn Care Checklist.

For a deep-dive on seasonal lawn management, the Lush Lawns guide covers month-by-month programs for every region: Lush Lawns on Amazon.

MowGuide.com is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.

You Might Also Like