Professional Lawn Mowing Technique
The equipment matters, but technique separates average lawns from impressive ones. Whether you want crisp stripes or just a consistently clean result, these principles apply.
The Golden Rule: One-Third
Never cut more than one-third of the grass blade in a single pass. Cutting too short weakens roots, causes yellowing and invites weeds. If grass has grown long, make two passes 2–3 days apart rather than scalping it in one go.
Mowing Direction and Stripes
Stripes are created by the roller or rear roller (if fitted) bending the grass in alternating directions — light reflects differently from each direction, creating the light/dark stripe effect.
- Mow in straight parallel lines, overlapping each pass by 5–10 cm
- At the end of each row, turn tightly and mow back in the opposite direction
- For a diagonal or diamond pattern, mow at 45° to your original stripes on the second cut day
Edging First or Last?
Edge the lawn borders with a half-moon edging tool or rotary edger before mowing. This way the mower picks up any loose clippings from the edged areas. If you edge after mowing, the clippings blow back onto the clean lawn.
Wet Grass: Mow or Wait?
Mowing wet grass clogs the collector, produces uneven cuts, compacts the soil with heavy mower wheels, and can spread fungal diseases. Always wait until the dew has dried — usually mid-morning. If you must mow slightly damp grass, raise the cut height and empty the collector more frequently.
Seasonal Cut Height Guide
| Season | Recommended Cut Height | Reason |
|---|---|---|
| Early spring (first cut) | 50–60 mm | Don't shock grass coming out of dormancy |
| Spring growing season | 35–45 mm | Active growth, good thickness |
| Summer (normal) | 40–50 mm | Taller grass shades roots in heat |
| Summer (drought) | 55–65 mm | Longer blades protect soil moisture |
| Autumn (last cut) | 40–50 mm | Not too short — grass needs reserves for winter |
FAQ
How do I get perfectly straight stripes?
Fix a sight line at the far end of the lawn — a fence post, a tree trunk, a garden ornament. Aim for that point and don't look down at the mower. Looking ahead gives you straighter lines than looking at your feet.
Should I collect or mulch in summer?
In a dry summer, mulch — returning clippings retains moisture and feeds the lawn. In wet periods, collect to avoid smothering the grass with thick wet clippings.
