The Secret to Perfectly Sharp Lawn Edges — And Why Your Robot Mower Can't Do It Alone

Your robot mower does a great job. But there's one thing it physically cannot do — and it's the first thing visitors notice. I hear it at least once a week from Belgian homeowners: "Olivier, my robot mows beautifully, but the edges along the fence look terrible." Nothing is wrong. It's not your robot. It's physics — and I have a solution.

I Get This Question Every Single Week

It usually arrives as a WhatsApp message with a photo attached. There it is: a beautifully mowed lawn in the centre, and a ragged strip of long grass running the full length of the fence. Fifteen centimetres of untamed grass at the edge of an otherwise perfect garden.

The homeowner thinks something is broken. I have to explain that the robot is working exactly as designed.

Why Every Robot Mower Leaves a Fringe

Every robot mower on the market — Segway Navimow, Husqvarna Automower, Worx Landroid, all of them — has its cutting blades set back from the outer edge of the chassis. This is a deliberate safety feature. If the blades extended to the full edge of the body, they would constantly clash against fence posts, walls, garden borders, and decorative stones.

The result is a strip of uncut grass, typically 10 to 25 centimetres wide, running all the way around your garden's perimeter. Along the fence. Under the hedge. Beside the shed. In the open areas, your lawn looks immaculate. At the edges, it looks completely untouched.

In most Belgian gardens I visit, this is the number one frustration once the novelty of the robot has worn off.

What About the New Edge-Mowing Models in 2026?

In 2026, several manufacturers have started tackling this with new hardware. Worx Landroid introduced an asymmetrical cutting deck that pushes the blades closer to one side. Husqvarna's Automower EdgeCut function uses a rear blade disc to trim closer to hard boundaries. These are genuine improvements — I've been following them closely.

But they work best against flat, hard surfaces like a terrace, a paving slab, or a tile border. For the typical Belgian garden — wooden fencing, hedge bases, raised flower beds, decorative edging — you still need a trimmer pass afterwards. Even the best models still leave a 4 to 8 centimetre strip along hard edges. For a truly finished look, that's simply not enough.

The Most Important Tip I Give Every Robot Mower Customer

This is where I started noticing a pattern. The customers who were most satisfied with their robot mower — the ones who sent me before-and-after photos, who referred us to their neighbours unprompted — had one thing in common. They weren't doing the edge trimming themselves.

The single most effective thing you can do to make your robot mower investment look its best is this: don't underestimate the edges.

A perfectly mowed lawn with ragged, overgrown fringe edges looks worse than a garden that hasn't been touched at all. The contrast draws the eye immediately. It's the first thing visitors notice when they walk up to your house. Sharp, clean edges tell the whole story — they signal a garden that's looked after.

Man using a string trimmer to finish lawn edges in a grassy outdoor area

What I Do — Twice a Month

This gap is exactly why I created the Lawn Edge Care Carefree subscription. The concept is simple: I come to your garden twice a month and take care of everything your robot mower physically cannot reach.

During each visit, I:

  • Trim all edges with a professional grass trimmer — along fences, walls, hedge bases, decorative borders, and raised beds
  • Blow all clippings off hard surfaces: the terrace, the path, the driveway
  • Do a quick visual inspection of your robot mower while I am there

A visit typically takes 20 to 40 minutes depending on garden size. You do not need to be home. I work quietly, I leave nothing behind, and the result is a garden that looks genuinely finished — not just mostly done.

One of my customers near Ghent has a Navimow i108e she commissioned last spring. After a few months with the edge care subscription, her neighbour knocked on the door to ask who her gardener was. The robot handles 95% of the mowing. I do the 5% that makes the whole garden look like something from a magazine.

Olivier using a professional battery string trimmer to trim grass edges along a garden fence

Is Buying a Trimmer Not Cheaper?

On paper, yes — a decent electric trimmer costs between €60 and €120. But then you need to charge it, store it, maintain it, and actually use it every two weeks. On a Saturday morning. When you would rather be doing something else.

If you already invested in a robot mower, you bought it precisely so you would not spend your weekends on the lawn. Adding a trimmer to the mix defeats the purpose entirely.

The Lawn Edge Care Carefree subscription for a 500–999m² garden costs €49.99 per month — roughly €25 per visit. For most Belgian homeowners I work with, that calculation resolves itself very quickly.

Who Is This Service For?

If you already have a robot mower and you care about how your garden looks end-to-end, this service is built for you. It also pairs naturally with my Robot Mower Selection & Installation service — many of my customers in Belgium add edge care from day one, so the entire lawn is covered from the moment their Navimow starts running.

And if your robot is due for its annual check — blade replacement, software update, seasonal service — that is covered under my Robot Mower Service Carefree package.

Ready for a Garden That Looks Perfect — End to End?

Your robot mower does the heavy lifting. Let me handle the part it cannot reach. Together, we make your garden look exactly how it should — every two weeks, without you ever thinking about it.

Book Lawn Edge Care Carefree →

1.Why does my robot mower leave uncut grass along the fence?

Every robot mower — including Segway Navimow, Husqvarna Automower, and Worx Landroid — has its cutting blades set back from the outer edge of the chassis. This is a deliberate safety feature to prevent the blades from clashing against fence posts, walls, and garden borders. The result is an uncut strip of typically 10 to 25 centimetres running along fences, hedges, and raised beds. It is not a fault with your robot — it is how every robot mower on the market is designed.

2.How do I get clean lawn edges along my fence or hedge?

The most reliable way to get clean lawn edges along fences and hedges is to combine a robot mower with a regular trimmer pass. Your robot mower handles the open lawn, but the strip alongside boundaries — typically 10 to 25 centimetres wide — needs to be trimmed separately every two weeks during the growing season. A professional grass trimmer gives the cleanest result, followed by blowing clippings off hard surfaces. If you prefer not to do this yourself, a professional lawn edge care service like the one Olivier offers at ovdv.be takes care of this for you on a fixed schedule — so your garden always looks finished, end to end.

3.How often do lawn edges need to be trimmed when I have a robot mower?

During the active growing season — typically April through October in Belgium — lawn edges alongside fences, walls, and hedges need trimming every two weeks to keep the garden looking neat. In winter, once a month or less is usually sufficient. Because a robot mower runs continuously, the contrast between the cleanly mowed centre and the untrimmed edges becomes more noticeable over time, making regular edge maintenance especially worthwhile.

4.Is professional lawn edge care worth it if I already have a robot mower?

If you invested in a robot mower to free up your weekends, adding a trimmer to your routine defeats the purpose. A professional lawn edge care subscription handles everything your robot cannot physically reach — for around €15 per visit with the Lawn Edge Care Carefree subscription at ovdv.be. Your garden looks finished end-to-end, without any extra effort on your part. Most Belgian homeowners find the calculation resolves itself very quickly.

5.What does a professional lawn edge care visit include?

A visit from Olivier at OVDV typically takes 20 to 40 minutes depending on garden size. During each visit, he trims all edges with a professional grass trimmer — along fences, walls, hedge bases, decorative borders, and raised beds — and blows all clippings off hard surfaces such as the terrace, path, and driveway. He also does a quick visual inspection of your robot mower while on site. You do not need to be home. Olivier works quietly and leaves nothing behind.

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Man operating a lawn mower in a grassy area with trees in the background

Portrait | Author

Olivier Vandevijver


I am the owner of OVDV in Laarne/Kalken and have more than 13 years of experience in the garden machinery sector. I advise, install and maintain robotic mowers from brands including Segway Navimow, STIHL and Honda — always based on the real situation of your garden: size, shape, slopes, obstacles and lawn edges. I also offer independent repair and maintenance of garden machines across different brands. And because a robotic mower can't do everything on its own, I also provide professional lawn edge care — so your garden stays not just automatically mowed, but clean and properly finished.

Learn more about him