Every fall someone asks me the same thing over the fence: when should I stop cutting the grass, and how short should that last cut be? The last mow of the season in Grande Prairie matters more than most people think. Get it right and your lawn heads into a long winter in good shape. Get it wrong and you can spend next spring fixing matted, patchy turf.
When to Do the Last Mow of the Season
There is no date on the calendar that works every year. Our falls can stretch on or end in a hurry. The better guide is the grass itself. Grass keeps growing slowly as long as the days stay mild, even after the leaves start coming down. Once growth stalls and you go a week or two without seeing much change, you are close.
A few signs it is time:
- The lawn barely needs cutting between your usual mows.
- Nights are turning cold and frost shows up on the grass most mornings.
- The trees around your yard have dropped most of their leaves.
- The forecast is starting to talk about snow that might actually stay.
I would rather cut one time too many than one time too few. If you mow and then get another mild stretch, you can always go over it again. If snow lands on a lawn that is still long, you are stuck with it until spring.
One practical tip: do not mow frosty grass. Frozen blades break and bruise under the wheels and the deck, and you can leave tracks of brown turf behind you. Wait until the frost burns off later in the morning or early afternoon.
How Short to Cut
For most of the season it pays to keep grass on the taller side, because taller grass shades out weeds and holds moisture. For the final cut, drop it down a notch. A good target for most home lawns is around 5 to 6 cm (2 to 2.5 inches). That is a bit shorter than summer, but nowhere near scalped.
Why not leave it long?
Long grass folds over under the weight of snow. When the snow melts in spring, that flattened grass stays wet and matted against the soil. That is the kind of setup snow mold loves. It is also cozy cover for voles, which tunnel through the lawn all winter. You see their trails in spring as winding brown lines across the yard.
Why not scalp it?
Cutting too short goes wrong the other way. The crown of the grass plant is where new growth comes from. Shave it down to the dirt and you expose those crowns to drying winds and hard freeze and thaw cycles. Scalped lawns tend to green up late and thin in spring, and weeds are happy to fill the gaps.
Do not drop the height all at once either. If your lawn has been sitting at around 9 cm (3.5 inches), lower it over your last two or three mows instead of taking half the blade off in one pass. Removing too much at once stresses the plant right when it should be storing energy for winter.
Get the Leaves Off First
The last mow and the leaf cleanup go together. If there is only a thin layer of leaves, mowing over them with a mulching mower chops them into small pieces that break down in the grass. That is fine. If the leaves are thick enough to hide the grass, mulching just makes a soggy mat. Rake or blow them off first, then do the final cut.
Our fall yard cleanup services include a full leaf blowout and a final edge cleanup, so the lawn is clear before that last cut.
Take Care of the Mower Too
Once the last cut is done, give your own mower some attention before it goes in the shed:
- Clean the clippings off the deck and underneath. Wet grass sitting there all winter causes rust.
- Run the gas tank dry or add fuel stabilizer, so old gas does not gum up the carburetor.
- Get the blade sharpened now so you are ready for the first spring cut.
- Check the oil and air filter while you are thinking about it.
A sharp blade matters on the last mow too. A dull blade tears grass instead of cutting it, and torn tips turn brown and leave the plant more open to disease going into winter.
Doing It Yourself or Hiring It Out
Honestly, the last mow is something most homeowners can handle. Lower the deck a notch, wait for a dry day with no frost, and clear the leaves first. Where it gets harder is timing. Fall gets busy, the weather turns fast, and a lot of people miss the window and end up with long grass under the first snow that sticks.
A one time fall cleanup visit can cover the final cut, the edging and the leaves in one shot.
Ready for the Last Cut?
If you would like us to handle the last mow of the season and get your lawn ready for winter, we would be glad to help. Request a fall cleanup quote or call Drew at 587 818 5838.
