How to winterise your lawn before the first frost

Prep your grass for winter so it comes back strong in spring. This guide covers the last mow, feeding, watering and clearing leaves before the first hard frost. It suits any homeowner with a small to medium lawn and needs only basic tools and a bag of autumn lawn feed.

⭐ Before the First Frost: The $12 Fix That Saves Your Grass (Most Skip It), by Silver Harvest Living on YouTube. 19 min 35 s.

8 chapters. Tap a step to jump to it.Chapters from the creator
Video length
19 min 35 s
Time to do it
2 hours
Difficulty
Easy
Steps
8

What you need

Steps

  1. Check the forecast and pick a dry day at least two weeks before your usual first frost date. Frost dates vary by region, so look up yours rather than guessing.

  2. Clear leaves, twigs and debris with a rake or blower. Matted leaves trap moisture and cause snow mould and patchy dead spots.

  3. Give the lawn a final mow, lowering the deck one notch but not scalping it. Leave grass about 5 to 6 cm tall so it does not mat down under snow.

  4. Aerate compacted areas by spiking with a garden fork or hollow tine aerator. Push the tines in about 8 cm deep and work across the whole lawn.

  5. Buy an autumn or winter lawn feed that is low in nitrogen and high in potassium. Check the bag ratio and follow the label rate, usually around 20 to 30 g per square metre.

  6. Apply the feed evenly with a spreader, working in straight passes and overlapping slightly. Water it in lightly so the granules dissolve.

  7. Water deeply once a week if rain is scarce, giving about 2 to 3 cm per session. Stop watering once the ground starts to freeze.

  8. Clear the last fallen leaves again and keep off the lawn on frosty mornings. Foot traffic on frozen grass snaps blades and leaves brown patches.

Tips and common mistakes

Do not fertilise with a high-nitrogen spring feed in autumn, as it pushes soft growth that frost kills.

Skip the feed if your lawn is already waterlogged or frozen, since the granules will wash away or sit on top.

Keep mower blades sharp so the final cut leaves clean tips instead of torn, browning edges.

Mark your frost date in your calendar so you repeat the routine at the same time each year.

Questions

What if the first frost comes earlier than expected?

Mow and clear leaves as soon as you can, then skip the feed if the ground is already frozen. Feeding frozen turf does nothing and wastes the product.

Should I water the lawn in winter?

Only until the ground freezes. After that, natural rain and snow cover are enough, and extra water can cause rot and mould.

Does this work on warm-season grass like Bermuda?

The timing shifts. Warm-season lawns go dormant earlier, so feed and mow before they brown off, and keep the final cut a little shorter.

This guide was drafted from the video's details and general task knowledge. It has not been checked against the full video. Check the video and relevant product instructions before following a procedure. Report a correction.

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