The direct answer: keep the sward inside the source’s height bands for the time of year, never remove too much in one pass, keep blades sharp, and change mowing direction between cuts. That is most of the craft; the rest is knowing when not to mow.
The height bands through the year
| Period | Band | Why |
|---|---|---|
| March — restart | 35–45 mm, easing toward 30–40 mm | Bring the height down gradually as growth strengthens; never scalp the first cuts. |
| April–May — strong growth | 30–40 mm, raising toward 35–40 mm before drought | A slightly longer sward protects the plant when dry spells threaten. |
| July — heat | around 45–50 mm | Longer grass shades the soil during hot spells, especially over new growth. |
| August — pre-season | step down toward 25–35 mm | Reduce over several cuts to reach the match band without stressing the sward. |
| In season | 25–35 mm match band | Hold the band; vary direction between cuts. |
| Late autumn–winter | mow only as growth and ground allow | Never mow a sodden surface; protection beats presentation. |
Habits that keep a sward healthy
- Sharp blades. Dull blades tear rather than cut; torn tips brown, weaken and invite disease. The spring guidance calls for sharpening at the restart — treat it as a standing item.
- Vary the pattern. Cutting the same lines every week builds ruts and grain; the autumn guidance makes pattern variation explicit.
- Little and often. Frequent light cuts inside the band beat occasional heavy ones — a heavy cut shocks the plant exactly when it is working hardest.
- Clear dew and debris first. The April guidance pairs mowing with dew removal and debris checks; wet grass cuts badly and hides hazards.
- Mind the conditions. A surface too wet to walk cleanly is too wet to mow. Smearing wet ground costs more than a shaggy week ever will.
The mistakes that thin a pitch
- Scalping in spring to “tidy up” — removing too much leaf at once weakens exactly the recovery the season depends on.
- Holding presentation height into a drought instead of raising the cut.
- Mowing saturated ground because the rota said so.
- Ignoring blade condition until the pitch looks frayed from the touchline.
When to stop and escalate
- Widespread thinning or disease that mowing changes do not arrest — get a qualified eye on it before feeding or treating blind.
- A mower that needs more than routine blade and filter care — local service agents beat improvised repairs.
Printable summary
Print this page and the band table becomes a shed-door reference; sources and the disclosure print with it.