Spring Lawn Care Checklist: Your Week-by-Week Game Plan

March 8, 2026 · Updated October 18, 2026 · 14 min read

Marker rendering of an early spring lawn with a rake and a spreader — Spring starts with a rake and a spreader, in that order.

8 Weeks

to a thriving lawn

The first 8 weeks of spring determine whether your lawn thrives or fights weeds all summer. This interactive checklist covers every task in order — from the first rake to the first fertilizer application.

Spring lawn care isn't complicated, but the sequence matters. Apply pre-emergent too late and crabgrass wins. Fertilize too early and you feed weeds instead of grass. This week-by-week checklist puts every task in the right order so nothing falls through the cracks. Need to calculate quantities? The fertilizer calculator and grass seed calculator handle the math.

Marker vignette of a rake pulling winter debris off a lawn edge — Clearing winter debris off the edges comes before anything is applied.

Week-by-Week Spring Checklist

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Check off tasks as you complete them

Early Spring

Weeks 1–2

Dead leaves and matted grass smother new growth and trap moisture that breeds fungal disease.

Pro tip: Use a flexible tine rake — stiff metal rakes can tear shallow grass crowns that are still waking up.

Snow mold, vole trails, and frost heaving create bare spots that need attention before weeds fill them.

Pro tip: Circle damaged areas with landscape paint so you don’t lose track once surrounding grass greens up.

A dull blade tears grass instead of cutting it, leaving brown ragged tips that invite disease.

Pro tip: Sharpen blades, change oil, replace the spark plug, and clean the air filter. Budget 30 minutes.

Fertilizer is wasted if pH is out of range (6.0–7.0 for most grasses). A $10 test prevents $100 in wasted product.

Pro tip: Send samples to your county extension office for the most accurate results.

Mid Spring

Weeks 3–4

The first cut stimulates lateral growth and signals the lawn to start thickening. Cut no more than 1/3 of the blade.

Pro tip: Set height to 3–3.5 inches for cool-season, 1.5–2 inches for warm-season grasses.

Pre-emergent creates a chemical barrier that stops crabgrass and annual weeds before they sprout. Timing is critical — too late and they’re already growing.

Pro tip: Apply when soil temps hit 55°F for 3+ consecutive days. Watch for forsythia blooming as a natural indicator.

Frozen pipes can crack over winter. A slow startup prevents water hammer damage and lets you find leaks early.

Pro tip: Open valves slowly, zone by zone. Check each head for proper spray pattern and adjust as needed.

Clean edges give the lawn a maintained appearance and prevent grass from creeping into flower beds.

Pro tip: Use a half-moon edger or flat spade for a crisp line. Edge before your first fertilizer so product stays on turf.

Late Spring

Weeks 5–8

Wait until the lawn has been mowed 2–3 times so grass — not weeds — benefits from the feeding.

Pro tip: Use a slow-release nitrogen blend (e.g., 20-5-10). Apply at half rate in two perpendicular passes for even coverage.

Bare patches from winter damage won’t fill in on their own. New seed needs soil contact to germinate.

Pro tip: Most pre-emergents (prodiamine, dithiopyr, pendimethalin) block grass seed too, so seeding usually waits until fall. Siduron and mesotrione are labeled for use at seeding.

Core aeration relieves compaction so roots can expand. Spring aeration is best for warm-season grasses; cool-season lawns benefit more from fall aeration.

Pro tip: Water the lawn 1–2 days before so tines penetrate easily. Make two perpendicular passes.

Even with pre-emergent, some weeds slip through. Catching them early prevents them from seeding and spreading.

Pro tip: Use a targeted post-emergent spray, not broadcast. Pull dandelions by hand before they go to seed.

Pre-Emergent Timing: The Most Critical Window

Pre-emergent herbicide is your first line of defense against crabgrass, foxtail, and annual bluegrass. Apply it too early and it degrades before weed seeds germinate. Too late and weeds are already growing — pre-emergent only stops seeds, not established plants.

Soil temperature

55°F+

Measure at 4 inches deep for 3 consecutive days

Natural signal

Forsythia blooming

When forsythia turns yellow, crabgrass is about 2 weeks away

Pre-emergent vs. overseeding conflict

Most pre-emergent herbicides block grass seed as well as crabgrass. If you plan to overseed this spring, skip standard pre-emergents like prodiamine or dithiopyr in those areas (Purdue puts prodiamine at 60 days after seeding or the second mowing, whichever is longer) and use siduron or mesotrione, which are labeled for use at seeding. Always check the product label.

Pre-Emergent Application Window

Too early

Ideal window (55–65°F soil)

Late — reduced effect

Too late — weeds sprouted

FebMarMid AprLate AprMay+

Also avoid aerating for 3–4 months after application. The aerator punctures the chemical barrier, creating gaps where weeds break through.

Key Tasks: Deep Dive

Each of these tasks deserves extra attention. Getting them right determines whether your lawn thrives or struggles through summer.

First Mow: Height & Blade Check

The first mow sets the tone for the entire season. Cutting too short (“scalping”) exposes the soil to sunlight and invites weed seeds to germinate. Cutting too high allows disease-prone conditions in the dense canopy.

Grass Type	First Mow Height	Season Height
Kentucky Bluegrass	2.5–3"	3–3.5"
Tall Fescue	3–3.5"	3.5–4"
Perennial Ryegrass	2–2.5"	2.5–3"
Bermuda	1–1.5"	1.5–2"
Zoysia	1.5–2"	2–2.5"
St. Augustine	2.5–3"	3–4"

Always follow the one-third rule: never remove more than one-third of the blade length in a single mowing. If the grass has gotten long over winter, lower the deck gradually over 2–3 mowings. Keep blades sharp — our blade sharpening guide walks you through it in 15 minutes.

Soil Testing & pH Adjustment

Most lawn problems start in the soil. A $10–$25 soil test from your county extension office tells you exactly what your lawn needs — and what it doesn't. Testing every 2–3 years keeps you from wasting money on fertilizer the lawn can't use.

Target pH

6.0–7.0

Most turfgrasses

Low pH fix

Lime

Takes 3–6 months

High pH fix

Sulfur

Apply in fall ideally

Read our complete soil pH testing guide for step-by-step instructions, or use the fertilizer calculator to determine how much product to apply based on your results.

Overseeding Thin Spots

Spring overseeding fills in bare patches caused by winter damage, disease, or heavy traffic. It works best when combined with light aeration to improve seed-to-soil contact. Keep in mind: most pre-emergent herbicides stop grass seed too, so on ground treated with prodiamine, dithiopyr, or pendimethalin, seeding usually waits until fall. Siduron and mesotrione are labeled for use at seeding.

Seeding rates: Use the grass seed calculator for exact quantities. General overseeding rate is 1–2 lbs per 1,000 sq ft for bluegrass, 3–4 lbs for tall fescue.

For complete instructions on seed selection, prep, and watering, see our grass seed planting guide.

Irrigation System Startup

If you winterized your sprinkler system in the fall, spring startup requires a careful, zone-by-zone approach to avoid cracking pipes or damaging valves.

Close all drain valves that were opened during winterization

Slowly open the main water valve — 1/4 turn every 30 seconds

Turn on each zone individually and walk the yard checking for leaks

Adjust spray heads for proper coverage (no dry spots, no sidewalk watering)

Set your controller: 1 inch per week in spring, increasing to 1.5 in summer

Regional Timing Adjustments

“Spring” starts in February in Atlanta but not until late April in Minneapolis. Use these zone-specific windows to calibrate the checklist above to your climate.

Northern Zone

Cool-season

MN, WI, MI, NY, New England, Pacific NW

Task	Timing
Cleanup & first mow	Late March – mid April
Pre-emergent	Mid April – early May
First fertilizer	Late April – May

Grasses: Kentucky Bluegrass, Fescue, Ryegrass

Transition Zone

Cool or warm-season

VA, KY, TN, NC (Piedmont), MO, KS, southern IN/OH

Task	Timing
Cleanup & first mow	Early – mid March
Pre-emergent	Late March – mid April
First fertilizer	April

Grasses: Tall Fescue, Bermuda, Zoysia

Southern Zone

Warm-season

FL, GA, AL, MS, LA, TX, SC, AZ

Task	Timing
Cleanup & first mow	Late February – early March
Pre-emergent	Late February – mid March
First fertilizer	April – May (after 50%+ green-up)

Grasses: Bermuda, St. Augustine, Zoysia, Centipede

Microclimate tip: South-facing slopes and urban areas warm up 1–2 weeks earlier than north-facing slopes or rural areas. Adjust accordingly — your neighbor's timing might not match yours.

Quick Reference Card

Bookmark this. Everything you need for spring in one place.

Spring Lawn Care — Cheat Sheet

Rake & clean up

As soon as ground thaws; remove debris before growth starts

Sharpen mower blades

Before the first cut; dull blades tear grass and invite disease

Soil test

Every 2–3 years; target pH 6.0–7.0 for most grasses

Pre-emergent herbicide

Soil temp 55°F for 3+ days (forsythia bloom = go signal)

First mow

1/3 rule; 3–3.5" cool-season, 1.5–2" warm-season

First fertilizer

After 2–3 mowings; slow-release N (e.g., 20-5-10)

Overseed thin spots

After a standard pre-emergent, wait for fall; siduron or mesotrione allow seeding

Aerate (if needed)

Spring = warm-season only; cool-season lawns aerate in fall

Irrigation startup

Open valves slowly, zone by zone; target 1"/week

Spot-treat weeds

Post-emergent only on breakthrough weeds; don’t broadcast

Tasks to Complete

Across 8 weeks

Most Critical Task

Pre-Emergent

Timing is everything

Target Mow Height

3–3.5"

Cool-season grasses

Ready to tackle your spring lawn? Calculate how much fertilizer and grass seed you need, then follow your fertilizer schedule through the rest of the season.