How regular mowing keeps Christchurch lawns healthy

The single biggest favour you can do a lawn is to mow it regularly. Most of the tired, weedy lawns around Christchurch are not short of water or fertiliser — they are short of consistent mowing. Grass that is cut little and often grows thick from the base, and thick grass leaves no room for weeds to establish.

The rule of thumb is the one-third rule: never remove more than a third of the blade in a single cut. Take more and the plant has to raid its root reserves to regrow leaves, which weakens the roots a little every time. Do that all summer and the lawn thins out, the soil shows through, and weeds move into the gaps. Regular mowing avoids the problem entirely because there is never that much to take off.

Height matters — and it changes with the season

Through spring and early summer, when Canterbury ryegrass and fescue are growing fast, a cutting height of around 4 to 5 centimetres keeps the lawn dense without letting it get away. As the dry Nor'westers arrive, raising the cut a notch shades the soil, slows moisture loss and helps the lawn stay green longer without extra watering. Then in autumn the height can come back down for the last few cuts before winter, when growth all but stops and the mower can rest.

What about the clippings?

In dry weather there is a good case for mulching fine clippings back into the lawn — they break down quickly and return nitrogen to the soil for free. But when the grass is long or damp, clippings clump, smother the grass beneath and look a mess. That is when catching is the kinder option. A good mowing service reads the conditions on the day rather than doing the same thing every visit regardless.

If your lawn has slipped into the boom-and-bust cycle — scalped one month, knee-high the next — a regular schedule will turn it around within a season. Read about our mowing service or get in touch to set up a rhythm that suits your lawn.