Spring Lawn Care Checklist for GTA Homeowners

March 28, 2026 Seasonal Tips

What you do in spring decides how your lawn looks all summer. Here is the step-by-step spring lawn care checklist for Mississauga, Milton, and the GTA.

Spring Sets the Tone for the Whole Year

A great-looking summer lawn is won in spring. The work you do in April and May — or skip — shows up in June and July. The goal of spring lawn care in the GTA is to clear away winter, wake the lawn up gently, and set it up to grow thick before the heat arrives. Rush it and you compact wet soil and waste fertilizer; ignore it and weeds and bare patches get a head start you spend all season fighting. Here is the order that actually works.

Step 1: Wait, Then Clean Up

The most common spring mistake is starting too early. Working a lawn while the ground is still soft and saturated from snowmelt compacts the soil and tears up the grass. Wait until the lawn has dried enough that you do not leave footprints, then do a gentle cleanup — rake out matted leaves, dead grass, twigs, and any debris that blew in over winter. This clears the way for sunlight and air and lets you see what shape the lawn is really in.

Step 2: Deal With Salt Damage

If you have brown, dead strips of grass along the driveway, walkway, or road, that is almost always road-salt damage — a classic GTA spring problem. As soon as the weather allows, flush those areas heavily with water to leach the salt down through the soil. A light application of gypsum can help restore the soil. Badly burned strips usually need to be raked out and overseeded or patched, but flushing early gives the surviving grass its best shot at recovering on its own.

Step 3: The First Mow

Wait for the grass to reach about 7 to 8 cm before the first cut, and take off no more than a third of the blade height. Make sure your mower blade is sharp — a dull blade tears grass and leaves it vulnerable to disease right when it is waking up. Bag the first cut or two to remove any remaining debris, then you can return to mulching. Cutting too short, too early — "scalping" — stresses the lawn and invites crabgrass into the thin spots.

Step 4: Fertilize at the Right Time

Hold off on fertilizer until the lawn is actively growing and you have mowed once or twice — usually mid-to-late spring in the GTA, not the moment the snow melts. Apply too early and the nutrients leach away before the roots can use them. A balanced or slightly nitrogen-forward spring fertilizer supports steady green-up and growth. If you are also putting down a crabgrass pre-emergent, the timing overlaps nicely, since both go down as the soil warms.

Step 5: Overseed and Pre-Empt Crabgrass

Spring is a good time to overseed thin and bare patches so they fill in before summer — but there is a catch. Crabgrass pre-emergent herbicides also stop grass seed from germinating, so you cannot do both in the same spot at the same time. The usual approach: apply pre-emergent across the healthy lawn to block crabgrass, and hand-seed the bare repair areas separately without pre-emergent. Plan which areas get which treatment before you start.

Step 6: Know When to Call In Help

Spring is the busiest, most time-sensitive season for a lawn, and the window to get it right is short. If you would rather not juggle cleanup, timing, fertilizing, and seeding around the weather, a professional spring package handles it in the right order at the right time. Lawn By Moe offers spring cleanups and full-season programs across Mississauga, Milton, Brampton, Oakville, and the GTA. Call 437-433-1994 or request a free quote to get your lawn started right this year.

Frequently Asked Questions

When should I start mowing my lawn in spring in Ontario?

Wait until the grass reaches about 7–8 cm and the ground is dry enough that you do not leave footprints — typically mid-to-late April in the GTA. Use a sharp blade and never cut off more than a third of the height at once.

When should I apply spring fertilizer in the GTA?

Wait until the lawn is actively growing and you have mowed once or twice, usually mid-to-late spring. Fertilizing the moment the snow melts wastes product, because the nutrients leach away before the roots are active enough to use them.

How do I fix salt-damaged grass along my driveway?

Flush the brown, damaged strips heavily with water as soon as the weather allows to leach the salt through the soil, and consider a light gypsum application. Severely burned areas usually need to be raked out and overseeded.