Why Does My Lawn Have Brown Patches? Common Causes and Simple Fixes

Few things are more frustrating than looking out the window and seeing brown patches scattered across an otherwise healthy lawn.

The good news is that brown patches are usually a symptom of an underlying issue—not a sign that your lawn is beyond saving. Once you identify the cause, most lawns recover with the right care.

If you’re in Young NSW, here are the most common reasons your lawn may be turning brown and what you can do about it.

1. Not Enough Water

One of the most common causes of brown grass is simply a lack of moisture.

During hot, dry weather, lawns can dry out surprisingly quickly, especially in full sun or areas with sandy soil.

Signs include:

  • Dry, crispy grass.
  • Brown areas that gradually spread.
  • Footprints remaining visible after walking across the lawn.

What to do

Water deeply rather than lightly. A thorough soak encourages deeper root growth and produces a more drought-resistant lawn.

2. Cutting the Grass Too Short

Many homeowners think mowing the lawn shorter means they won’t have to mow as often.

Unfortunately, the opposite is often true.

Scalping removes too much leaf, exposing the soil to direct sunlight and causing the lawn to dry out much faster.

What to do

Raise your mower height slightly, particularly during summer, and avoid removing more than one-third of the grass blade in a single mow.

3. Lawn Grubs

If sections of your lawn pull up easily like loose carpet, lawn grubs may be feeding on the roots underneath.

Birds digging in the lawn can also be a sign of grub activity.

What to do

Inspect beneath the turf and, if necessary, apply an appropriate lawn grub treatment according to the product instructions.

4. Fungal Disease

Warm, humid conditions can sometimes encourage fungal diseases that create brown or straw-coloured patches.

These often appear after extended periods of wet weather.

What to do

Avoid watering late in the evening, improve airflow around the lawn and mow regularly using sharp blades.

5. Compacted Soil

Lawns that receive heavy foot traffic can develop compacted soil, making it difficult for water, oxygen and nutrients to reach the roots.

This often results in thinning or brown areas.

What to do

Aerating the lawn can help relieve compaction and encourage healthier root growth.

Can Brown Grass Recover?

In many cases, yes.

Once the underlying cause is addressed, healthy grass will often spread back into damaged areas over the following weeks.

If large sections have died completely, overseeding or replacing small areas of turf may be necessary.

How Regular Lawn Mowing Helps

Regular mowing isn’t just about appearance.

A consistent mowing schedule:

  • Encourages thicker, healthier growth.
  • Makes it easier to spot problems early.
  • Prevents weeds from taking over thin areas.
  • Keeps your lawn looking neat all year.

At Verdigo Lawn Mowing, we help homeowners across Young NSW maintain healthy, well-presented lawns with reliable residential lawn mowing services.

Whether your lawn needs a tidy-up after a busy season or you’re looking for regular maintenance, we’re here to help.

Book online today and let us keep your lawn looking its best.

Frequently Asked Questions

Will watering dead grass bring it back?

If the grass is dormant, watering may help it recover. If it has completely died, the affected areas may need to be repaired or replaced.

Why are there small round brown patches in my lawn?

Small circular patches are commonly caused by dog urine, fungal disease or lawn grubs.

Can mowing fix brown patches?

Mowing won't solve the underlying problem, but regular mowing helps keep the lawn healthy and allows issues to be identified before they become widespread.

When should I call a professional?

If brown patches continue to spread despite watering and good lawn care, it may be worth having the lawn assessed to determine the underlying cause.

Book Your Lawn Mowing Service

Ready for a cleaner, tidier lawn?

Book your professional lawn mowing service today and let Verdigo handle the work.

Minimum service: 2 hour booking