A Season-by-Season Lawn Care Guide for New Zealand

A good lawn isn't about doing one big thing once a year. It's about doing the right small jobs at the right time. Here's how we work through the seasons in New Zealand.

Spring is when your lawn wakes up and starts growing hard. This is the time to give it a feed with a slow-release fertiliser to push strong green growth, and to get on top of weeds before they seed. If the lawn is looking thin or patchy after winter, spring is a good window to overseed bare spots while the soil is warming. Start lifting your mowing frequency as the growth picks up, and keep the blades sharp so you cut the grass cleanly rather than tearing it.

Summer is about survival, not pushing growth. Raise your mower height so the grass sits longer, around 40 to 50mm. Longer blades shade the soil, hold moisture and stop the lawn frying in a dry spell. Water deeply once or twice a week rather than a light sprinkle every day, because a good soak encourages roots to grow down where it stays cooler. Avoid heavy fertiliser in the peak heat, as you can burn the lawn.

Autumn is the most important season and the one most people skip. The soil is still warm but the weather is cooler and wetter, which is perfect for repair. This is the best time to aerate compacted lawns, topdress with a sandy soil mix to level things out, and lay new turf or sow seed. An autumn feed sets the lawn up to come through winter strong. If you only do serious lawn work once a year, do it now.

Winter is the quiet season. Growth slows right down, so you'll mow far less, maybe once a month or not at all in colder areas. Keep the leaves and debris cleared off so the grass underneath gets light and doesn't go yellow or rot. Try to stay off the lawn when it's frosty or waterlogged, because walking on it then compacts the soil and damages the grass. Lime can go on over winter if your soil pH is low and moss is taking hold.

The pattern is simple. Feed and tidy in spring, protect in summer, repair in autumn, rest in winter. Stick to that rhythm and you'll have a lawn that looks after itself most of the year. If you'd rather not think about the timing at all, that's exactly what a regular maintenance plan is for.