'David's Lawn-mowing Efficiency Hierarchy' (2024)

Dan Larremore writes:

I just listened to the efficiency podcast with Matt LeBlanc, and grinned while Caitlin joked about David's lawn-mowing question at the end. You see, I too have asked that same question, and have struggled with the nagging feeling that says, "shouldn't you be more efficient with your time, and do something instead of trying to answer questions like these?" However, I have been inspired to actually think it through.

I think that no matter which pattern you mow in, when you're walking with the mower, you're going the same speed. Therefore, it all comes down to the turns. So, think about a rectangular patch of grass. I propose the following -- David's Lawnmowing Efficiency Hierarchy (DLEH. Rhymes with "blech" and sounds like a Yiddush suffix.)

1. The most efficient way to mow is the spiral: start from the outside and do the border, spiraling in to the middle.

2. Next, you have the long stripes: mow the long edge-the length of the rectangle-and then u-turn, and go back forth, striping the turf till you're done.

3. Next, the short stripes: same as long stripes, but this time you're going back and forth across the short distance.

4. Finally, the diagonal stripes: make strips starting at one corner, and going back and forth across the diagonal of the rectangle.Aesthetically, you're going to want to dial this one to 45 degrees.

4b. The Old Man "Keep Off My Lawn You Darn Kids" Deluxe Double-Diagonal Stripes: Do method 4, then do it again so the diagonals crisscross. Recommended for baseball outfields.

Since I heard you drew a diagram for Caitlin, make a rectangle for each of these on a sheet. Put an X where there's a right-angle turn, and a Y where there's a 180, for each of these methods. I have attached my diagram, taken from my Matt-LeBlanc-Whiteboard, and I think you will probably agree with my diagram. You can total the number of X or Y for each method, also shown in the diagrams.

Now, the real question is for comparing the spiral and the long stripes. Do you think two 90 degree turns take longer or shorter than one 180 degree turn? I think shorter, because the 180 you have to overshoot, and then turn, and then come back. Plus, if an edge of the yard is against a fence, that 180 can be a real beast up against the fence.

Therefore, I reason that Y < 2X, and so the spiral wins...for time. But clearly, the double-diagonal is the most visually attractive, and if you're like my mother, you drag the mower from the middle of the spiral when you're done with that method, ruining the aesthetic of the spiral even more.

'David's Lawn-mowing Efficiency Hierarchy' (1)

Optimized lawnmowing by Daniel Larremore. Daniel Larremore hide caption

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Daniel Larremore

'David's Lawn-mowing Efficiency Hierarchy' (2024)

FAQs

'David's Lawn-mowing Efficiency Hierarchy'? ›

According to David's Lawn Mowing Efficiency Hierarchy, the list of fastest to most-time consuming mowing methods are: Spiral: Start from the outside and spiral into the middle. (No 180-degree turns!) Long stripes: Mow the long edge — the length of the rectangle — then u-turn, and go back the other way.

What is the most efficient mowing pattern? ›

The most efficient way to mow is the spiral: start from the outside and do the border, spiraling in to the middle.

How much do most lawn mowing companies charge? ›

Depending on your lawn size, you can expect to spend between $29 and $65 per hour or anywhere from $35 to $100 per visit for professional lawn mowing services.

Which grass has the highest optimal mowing height? ›

Grass Cutting Height Chart
Grass TypeHeight to Mow AtHow High to Cut
Perennial Ryegrass4-6 in.3-4 in.
Bermuda Grass3-4 in.2-2 ½ in.
St. Augustine Grass3-4 in.2-2 ½ in.
Centipede Grass3-4 in.2-2 ½ in.
4 more rows
Jul 20, 2023

What is the rule of thirds mowing? ›

The rule that helps us figure that out is called the one-third rule, which means never remove more than one-third of the leaf tissue at any one time that you're mowing. So, if you're mowing Kentucky bluegrass at two inches high, for example, you don't want to let it grow any higher than three inches before you mow it.

Why you shouldn't mow your lawn every week? ›

Mowing every two weeks — instead of weekly — and not dousing grass with chemical herbicides and fertilizers, helps the environment and supports the health of bees, which are among the world's most important pollinators.

Should I mow the same pattern every time? ›

Don't Mow the Same Way Every Time – Alternate the Pattern

Varying the pattern in which you mow will help to allow the blades to grow straighter and healthier. Grass blades tend to grow in the direction in which they are mowed. Alternating the pattern allows the blades to return to a more upright position.

What is a good profit margin for lawn mowing? ›

The typical net profit margin in lawn care and landscaping ranges from 5% to 20% per job. The more expenses you have, the less profit you come back with in the end. So it's essential to know your costs, how much they are per job, and what's factoring into your bottom net profit line.

How often should a lawn be mowed? ›

The rate of grass growth and desired height of your lawn determine how often you need to mow. Typically, mowing once a week during the growing season should suffice to keep your lawn healthy. The rest of the time, you can reduce the frequency of cutting to every other week, as necessary.

Should I leave grass clippings on my lawn? ›

As a general rule, grass clippings of an inch or less in length can be left on your lawn where they will filter down to the soil surface and decompose quickly. Remove longer clippings because they can shade or smother grass beneath causing lawn damage. Don't throw out bagged grass clippings as yard waste.

What is the best height to mow a lawn to prevent weeds? ›

For the healthiest and most sustainable approach, Michigan State University Extension says 3.5 to 4 inches is most desirable. Lawns mowed at 3.5 or 4 inches out-compete weeds, tolerate grubs and look just as good as lawns mowed at 2.5 inches.

What is the height most homeowners want their grass mowed? ›

Recommended Mowing Height The ideal mowing height for most lawns is between 3.5 to 4 inches. The benefits of mowing tall are numerous. Roots will grow deeper, improving drought tolerance. Tall turf provides better shade for the root system, conserving water, and blocking the growth of unwanted weeds.

Why only cut 1/3 of grass? ›

By following the one-third rule for grass-cutting, you leave sufficient foliage to overcome the stress caused by cutting and to power the lawn's healthy growth via photosynthesis.

What is the best angle to mow a lawn? ›

Start by mowing your yard in the stripe pattern above. When you finish your lawn, turn so that you are sitting at a 90-degree angle to the stripes you just mowed. At this new angle, re-mow your lawn to achieve the checkerboard pattern.

Is it faster to mow in circles or straight lines? ›

Mowing in concentric circles reduces turns and makes the turns wider, so you spend less time maneuvering the mower.

Should you mow or edge first? ›

Mow First

By mowing first, you know how short to trim grass along edges and will be less likely to scalp those areas, giving rise to bare or weedy patches.

How do you get perfect lines when mowing? ›

For the straightest lawn striping, find a straight driveway or path to follow. Mow the first stripe parallel to it. When you come to the end of that stripe, make a tight turn with your mower, or raise the mower deck. Mow the next row in the opposite direction.

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