Robotic lawnmowers & lawn edges: How to achieve the perfect cut | Nestyheim
How cleanly does a robotic lawnmower mow the lawn edge?
A well-maintained lawn is the pride of any garden – but untidy lawn edges can quickly spoil the overall look. While robotic lawnmowers promise almost complete automation of lawn care, differences become apparent, especially when it comes to trimming edges.
Why do lawn edges remain standing?
Most robotic lawnmowers don't cut all the way to the edge of the lawn. The reason: safety. The sharp blades are mounted centrally or protected underneath the device and stop automatically when raised. This creates a safe distance between the blades and the edge of the housing.
Technical cause: knife position
| Knife position | Typical verge |
|---|---|
| Middle | approx. 10–20 cm |
| Side (edge cut) | approx. 6 cm |
Depending on the model and blade position, a different width of edge strip remains – often more with cheaper devices, less with premium models.
👉 Tip: For the Ecovacs GOAT GX-600 with edge cutting function
Which robotic lawnmowers mow the edges particularly cleanly?
Not every robotic lawnmower is designed for precise edging. Models with an edge-cutting function have a clear advantage. The mower is positioned sideways and extends beyond the wheel axle—ideal for working close to walls, fences, and flowerbeds.
Top models with edge cutting function
| Model | Edge cutting | Suitable for |
|---|---|---|
| Ecovacs GOAT GX-600 | ✅ | Large, structured gardens |
| Ecovacs GOAT O500 | ✅ | Medium-sized lawns |
| Gardena Sileno Life | Partially | Flat gardens |
👉 Discover more: All robotic lawnmowers at nestyheim.de
Laying boundary cables correctly: The key to a clean cut
A common installation mistake: The boundary wire is laid too far from the edge of the lawn. This prevents the blade from reaching the edge.
Guideline values for boundary distance (example Robomow)
| Model | Distance to wall | Distance to Rasenstein |
|---|---|---|
| RC308u | 20 cm | 10 cm |
| RS625 Pro | 28 cm | 18 cm |
| RX50 | 18 cm | 8 cm |
📘 Always follow the manufacturer’s instructions for ideal cable routing.
Lawn edging stones: The perfect support
For particularly clean edges, we recommend installing lawn edging stones . These should be flush with the lawn and be accessible to the robot.
Popular variants
- Dovetail stones
- Granite cobblestones
- Rectangular paving
- Concrete slabs
👉 Advantage: Less manual rework and stylish garden design in one.
Alternatives if edge cutting function is missing
Not every robot has a side cut. For models with a center blade, the following options are available:
- Manual rework with grass trimmer or cordless shears
- Garden design with driveable lawn edging stones
- Sensor-based robots with high-contrast boundaries
💡 Our tip: If you want to avoid any rework, you should pay attention to the edge cutting function when choosing a robotic lawnmower.
Conclusion: Clean lawn edges with the right setup
A robotic lawnmower can take over almost all lawn care tasks – if the right model is chosen and optimally installed. Edging, in particular, depends on the blade position, the boundary wire, and the design of the lawn edges.
✅ Our recommendations for perfect lawn edges:
- Ecovacs GOAT GX-600 – Premium model with precise cutting
- Ecovacs GOAT O500 – Ideal for medium-sized gardens
- Gardena Sileno Life – proven solution for beginners
👉 Discover our entire range: Go to the robotic lawnmower category
Need help choosing the right robotic lawnmower? Contact us – we'll be happy to advise you!