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Timing is Everything:The Best Time of Day to Cut the Grass

By Jeff Mercer · Updated April 9, 2023 · 4 min read
what-is-the-best-time-of-day-to-cut-grass
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What’s up, folks? Jeff here, your go-to guy for all things lawn-related.

Today, we’re tackling a question that has been plaguing homeowners for years: what’s the best time of day to cut grass?.

Before we dive into the answer, let me share a personal story with you.

Last summer, I decided to mow my lawn at the crack of dawn.

I thought, “Hey, it’s cooler outside, and I’ll get it out of the way before my day gets started.”.

Big mistake.

Not only did I wake up my entire neighborhood, but the grass was still wet with dew.

My mower kept getting clogged, and I had to stop every few feet to clean it out.

Needless to say, I learned my lesson.

So, what is the best time of day to cut grass? The answer is simple: mid-morning to early afternoon.

The grass is dry, the dew has evaporated, and the sun is not at its highest point yet.

Plus, you won’t be disturbing your neighbors’ beauty sleep.

TL;DR: The best time of day to cut grass is mid-morning to early afternoon when the grass is dry and the sun isn’t at its highest point yet.

The Science Behind It

what-is-the-best-time-of-day-to-cut-grass

Now, let’s get into the nitty-gritty.

Why is mid-morning to early afternoon the best time to mow your lawn?.

Well, first of all, mowing wet grass can damage your lawn.

Wet grass clippings can clump together and create a thick layer on top of your lawn, which can suffocate the grass and create an ideal environment for fungi and other lawn diseases to grow.

Secondly, cutting grass during the hottest part of the day can put unnecessary stress on your lawn.

When the sun is at its highest point, your lawn is already fighting to stay hydrated and healthy.

By adding the stress of being cut, you’re making it even harder for your grass to thrive.

So, to recap: mid-morning to early afternoon is the sweet spot because the grass is dry, the dew has evaporated, and the sun isn’t at its highest point yet.

This allows you to get a clean cut without damaging your lawn or stressing it out.

Now, let me tell you about the time I decided to mow my lawn in the middle of a heatwave.

I figured I’d get it out of the way before the weekend, but boy was I wrong.

The heat was unbearable, and I was sweating buckets within minutes.

My mower kept stalling, and I had to keep stopping to let it cool down.

To make matters worse, the sun was beating down on me, and I didn’t have any sunscreen on.

Long story short, I learned my lesson again.

Mid-morning to early afternoon is the best time to cut grass, and I’m never straying from that again.

FAQs

Q: Can I cut my grass in the evening?

A: While it’s not ideal, you can cut your grass in the evening if you have to.

However, keep in mind that cutting grass when it’s wet can damage your lawn, so make sure the grass is dry before you start.

Q: Should I bag or mulch my grass clippings?

A: It depends on your personal preference and the condition of your lawn.

Bagging your clippings can help keep your lawn looking neat and tidy, especially if you have a lot of debris on your lawn.

Mulching your clippings, on the other hand, can be beneficial for your lawn.

When you mulch your clippings, you’re essentially creating a natural fertilizer for your lawn.

The clippings will break down and release nutrients back into the soil, which can help promote a healthy lawn.

If you decide to mulch your clippings, make sure your mower has a mulching blade and that you’re cutting your grass when it’s dry.

Wet grass clippings can clump together and create an uneven layer on your lawn, which can cause issues down the road.

Q: How often should I mow my lawn?

A: It depends on the growth rate of your lawn.
Most lawns need to be mowed once a week, but some lawns may need to be mowed more frequently.

If you’re unsure how often you should be mowing your lawn, start by mowing it once a week and adjust accordingly.

Keep in mind that cutting too much of the grass blade at once can stress out your lawn, so be sure to only cut about ⅓ of the blade each time you mow.

My Conclusion

In conclusion, the best time of day to cut grass is mid-morning to early afternoon when the grass is dry, and the sun isn’t at its highest point yet.
By mowing your lawn at the right time, you can help promote a healthy lawn and avoid unnecessary stress and damage.

Remember to also consider the condition of your lawn when deciding whether to bag or mulch your clippings and how often to mow.

Now that you know the best time to mow your lawn, it’s time to get out there and give your lawn the TLC it deserves!

Before you start the repairI'm a homeowner who does his own small-engine work, not a certified technician. Before any repair, pull the spark plug wire and let the engine cool. Anything involving blades under a raised machine, fuel system leaks or transmission internals — if you're not sure, have a dealer or small-engine shop look at it.
Jeff Mercer

Written by

Jeff Mercer

Hi, I'm Jeff. I look after about an acre of lawn, a riding mower, a zero-turn, a push mower that is older than some of my neighbours' cars, and a snowblower that only ever breaks the night before a storm. Doing my own repairs started as a way to save on dealer labour and turned into the part of yard work I actually enjoy.

GardenTooly is where I answer the questions people type into a search bar while standing next to a machine that won't behave: why the deck shakes, why the mower dies when it warms up, whether a bent blade shaft can be straightened, what the difference between two transmissions really means for you, and which fuel additive is worth the shelf space.

I'm not a certified small-engine technician and I don't sell equipment. Where I've done a job myself, I say so. Where an answer comes from the owner's manual, a service bulletin or a mechanic who knows more than me, I say that instead — and anything involving blades, fuel, jacked-up machines or a hydrostatic transmission gets a plain "take it to a shop" when that's the right call.