How short should I cut my lawn for the last mow before winter?

Lower the height gradually over the last few cuts to about 2 to 2.5 inches, but not below 2 inches. A shorter final cut reduces the risk of snow mould in spring, makes leaf collection easier, and gives burrowing rodents like voles less cover. Scalping it below 2 inches does more harm than good, so ease it down rather than cutting it all at once.

Do I need to rake leaves before it snows?

Yes. A thick layer of fallen leaves left on the lawn over winter blocks light and traps moisture against the grass, which suffocates it and encourages disease and snow mould. Rake them off, or mulch-mow a thin scattering of leaves back into the lawn, but do not leave a heavy mat sitting on the grass through the snow. Clearing them also makes the spring lawn far easier to recover.

How do I winterize my outdoor water before winter?

Drain and loosely coil garden hoses and store them, and shut off and drain outdoor taps so no water is left to freeze and split the pipe. If you have an in-ground irrigation system, blow it out or have it winterized before the first hard freeze, because water left in the lines expands as it freezes and cracks them. This is the step that prevents an expensive spring surprise.

Should I water and fertilize my lawn before winter?

Yes to both, before the ground freezes. A fall winterizer fertilizer, higher in potassium, helps the lawn store energy for winter and green up faster in spring. And giving the lawn and perennials a final deep watering before the soil freezes lets the plant crowns rehydrate going into the cold. Both are done in mid-to-late fall, ahead of a hard freeze.

When should I book a snow removal contractor in Toronto?

Book in September or early October. Early-bird contract windows typically close in mid-October, and signing up mid-season, after the first storm, means paying rush premiums for whatever capacity is left. Lining up a crew before the first snow is part of winterizing the yard, not a separate task, and it locks in both the price and a guaranteed spot on the route.

How to Winterize Your Yard Before First Snow

Answer First: To winterize a Toronto yard before the first snow, cut the final mow short to about 2 to 2.5 inches and clear the leaves to prevent spring snow mould, put down a fall winterizer feed and one last deep watering before the ground freezes, then winterize the water side by draining hoses and blowing out or shutting off irrigation so pipes do not burst (University of Minnesota Extension; City of Toronto). Finish by booking a snow contractor before the mid-October rush. Done in that order, it is an afternoon of work that saves a rough spring.

The first snow always arrives before people feel ready. A short list of jobs, done in the mild weeks of late fall, is the difference between a lawn that greens up cleanly in April and one that comes out of winter matted, mouldy and half-dead.

The before-first-snow checklist

Five zones, in the order you should tackle them. Everything here is doable in an afternoon or two of good fall weather.

Checklist diagram of fall yard winterizing tasks grouped into lawn, garden, water and pipes, drainage, and snow prep — The winterize checklist by zone. Work through the lawn, garden, water lines, drainage and snow prep before the first hard freeze.

Lawn: final short mow, clear the leaves, apply a fall winterizer feed, and give one last deep watering before the ground freezes.
Garden beds: cut back spent perennials, mulch the beds, and wrap or shelter young or tender trees and shrubs.
Water and pipes: drain and store hoses, and blow out or shut off irrigation and outdoor taps.
Drainage: clean the gutters and clear the catch basin near your home so a thaw drains instead of flooding.
Snow prep: mark driveway edges for the plow, stock salt or sand, service the snowblower, and book a snow contractor.

Why the last mow should be short

Because a tall lawn under snow is a mould problem waiting to happen. Lower the mowing height gradually over the last few cuts to about 2 to 2.5 inches, and not below 2 inches. A shorter final cut reduces the risk of snow mould in spring, makes it easier to collect leaves, and gives burrowing rodents like voles less cover to tunnel under the snow (University of Minnesota Extension).

Diagram showing the final fall mow lowered to about 2 to 2.5 inches and leaves cleared to prevent snow mould and vole damage — Ease the final cut down to about 2 to 2.5 inches and clear the leaves. Long grass and leaf mats under snow are what breed spring snow mould.

Pair it with clearing the leaves. A heavy mat of fallen leaves left on the lawn traps moisture and blocks light all winter, smothering the grass. Rake them off, or mulch-mow a light scattering back in, but do not let a thick layer sit on the grass under the snow.

Quotable: Cut the last mow of the year to about 2 to 2.5 inches and clear the leaves. Long grass and a wet leaf mat under snow are the two things that breed spring snow mould on a Toronto lawn.

Do not skip the water lines

This is the step that turns into a repair bill. Water left in a hose, tap or irrigation line freezes, expands, and splits the pipe, and you do not find out until spring. Drain and loosely coil hoses for storage, shut off and drain outdoor taps, and blow out or winterize any in-ground irrigation before the first hard freeze.

Diagram of winterizing outdoor water: drain and coil hoses, shut off and drain outdoor taps, and blow out irrigation lines before a hard freeze — Winterize the water before the first hard freeze: drain and store hoses, shut off and drain outdoor taps, and blow out irrigation lines so nothing is left to freeze and split.

While you are thinking about water, feed and water the lawn one last time. A fall winterizer fertilizer helps the lawn store energy for a faster spring green-up, and a final deep watering before the soil freezes lets the grass and perennial crowns rehydrate for winter (City of Toronto). If the lawn also needs aeration or overseeding, that is an early-fall job done well before this stage, covered in when to aerate your lawn in Toronto.

From the data: YardQuote tracks 249 lawn-care companies across the GTA (July 2026), 220 with three or more reviews at an average of 4.75 stars. Many offer a fall cleanup-and-winterize visit, which is worth booking alongside a snow contract so the same handoff covers the last mow and the first plow.

Book the snow crew before the first flake

Winterizing the yard includes lining up who clears it. Book a snow removal contractor in September or early October, because early-bird contract windows generally close in mid-October and mid-season signups pay rush premiums for whatever capacity is left. It locks in the price and your spot on the route.

Whether a seasonal contract or per-visit billing is cheaper for your winter is worked out in seasonal versus per-visit snow removal pricing, and once the snow falls, where you can legally pile it matters too. You can compare vetted crews on the Toronto snow removal cost page, see lawn-care options on the lawn care cost page, or browse pros in your area, such as lawn care in North York.

Want the fall cleanup and the winter snow handled by vetted local pros? Request a quote and compare up to three side by side. Your contact details only go to the one you pick.