Mon 17 Aug 2026

How to Revive Your Grass After a Heatwave

After a long spell of hot, dry weather, your lawn can quickly go from lush and green to dry, brown and patchy. If your grass has seen better days following a heatwave, don't worry, in many cases, it can recover with a little time and care.

Whether you're preparing your Banbury garden for the rest of summer or getting your home ready to put on the market, here's how to bring your lawn back to life after a heatwave.

First, check if your grass is actually dead

Brown grass doesn't necessarily mean it's dead.

During prolonged periods of heat and drought, grass can go dormant to protect itself. It may look dry and lifeless, but the roots can still be healthy underneath the soil.

A simple test is to gently pull on a few blades of grass. If they remain firmly rooted and you can see some green near the base, there's a good chance your lawn is dormant and can recover once conditions improve.

Give your lawn a thorough watering

After a heatwave, water is the first thing your lawn needs, but avoid flooding it.

Rather than giving the grass a quick sprinkle every day, aim for a deeper watering that allows moisture to reach the roots. Water early in the morning or later in the evening when temperatures are cooler, helping to reduce evaporation.

If you're in Banbury or Oxfordshire, keep an eye on any local water-use restrictions during particularly dry periods and follow the latest guidance.

Don't cut the grass too short

It can be tempting to mow a brown lawn in the hope that fresh green growth will appear, but cutting it too short can put even more stress on already struggling grass.

When you do mow, raise the height of your mower and avoid removing more than around a third of the grass height at once.

Leaving the grass slightly longer can help shade the soil and retain moisture.

Remove dead patches

Once you've watered the lawn and given it some time to recover, you can assess which areas genuinely need attention.

For smaller patches, gently rake away dead grass and loosen the surface of the soil. This creates a better environment for new seed to establish.

Don't be tempted to tackle every brown patch immediately. Give the lawn time to respond first, you may find that much of it greens up naturally.

Reseed bare areas

If some areas remain completely bare, reseeding can help restore a more even lawn.

Choose a grass seed suitable for your garden and the amount of sunlight it receives. Lightly rake the soil, scatter the seed and keep the area consistently moist while the new grass establishes.

Late summer or early autumn can be a particularly good time for lawn repair, as the soil is still warm while temperatures become more manageable.

Aerate compacted soil

Heat isn't the only thing that can affect your lawn. Compacted soil can make it harder for water and nutrients to reach the roots.

Once the weather has cooled, aerate areas that look particularly tired or compacted using a garden fork or lawn aerator. This creates small channels that allow air, water and nutrients to reach deeper into the soil.

Feed your lawn once it starts recovering

Once your grass has begun showing signs of new growth, a suitable lawn feed can help support its recovery.

Avoid heavily feeding a severely stressed or completely dormant lawn, as this can cause additional stress. Wait until you can see active growth before applying fertiliser and always follow the product instructions.

Be patient

One of the biggest mistakes homeowners make after a heatwave is trying to fix everything at once.

Your lawn may need several weeks to fully recover. Regular watering, sensible mowing and a little patience can often make a bigger difference than lots of products.

And remember, a slightly imperfect lawn is perfectly normal after a period of extreme heat.

Getting your Banbury garden ready to sell?

A healthy, well-maintained garden can make your property feel more inviting when potential buyers come to view it. You don't need a perfectly manicured lawn, but keeping outdoor spaces tidy and cared for can help buyers picture themselves enjoying the garden.

If you're thinking about selling your home in Banbury or the surrounding Oxfordshire area, the team at Stanbra Powell Estate Agents can provide local advice on preparing your property for the market.

From presentation tips to understanding the local property market, speak to Stanbra Powell for expert advice on selling your Banbury home.