How to Prevent Lawn Burn in the Harsh Summer Sun
Summer heat can take a toll on your lawn, leaving it dry and patching with unsightly brown patches. However, with the right care, you can maintain a lush, green lawn that thrives despite the heat. This guide outlines simple and practical steps to protect your grass and keep it looking its best all summer long.
1. Water Deeply and Consistently
To keep your lawn hydrated and resilient, water it deeply and regularly. Aim to provide about 2.5 cm of water per session, two to three times a week. Early mornings are ideal for watering to minimise evaporation and ensure water soaks deeply into the soil. Deep hydration encourages roots to grow deeper, making your grass more resistant to heat and drought.
2. Mow Your Lawn with Care
Avoid cutting your grass too short, especially in summer, as this exposes the roots to direct sunlight and increases the risk of burn. Set your mower blades higher and leave the grass at a height of around 7–10 cm to shade the soil and retain moisture. Additionally, make sure your mower is well-maintained for a clean and even cut.
3. Treat Hydrophobic Soils
Sometimes, dry or compacted soil can become hydrophobic, repelling water rather than absorbing it. Using a wetting agent can help water penetrate the soil and hydrate your lawn effectively. Apply the wetting agent as needed to ensure water reaches the root zone.
4. Use Fertiliser Wisely
Fertilising your lawn during periods of extreme heat can stress the grass and increase the risk of burn. Instead, opt for slow-release fertilisers or wait until cooler weather to feed your lawn. Always follow the manufacturer's guidelines for application to avoid overfeeding.
5. Provide Shade for Vulnerable Areas
Some parts of your lawn may receive more intense sun exposure, making them more prone to burn. Consider planting shade trees or using temporary shade solutions like cloths to protect these areas. This can reduce heat stress and keep the grass cooler.
6. Mulch and Top-Dress Your Soil
Healthy soil is key to a resilient lawn. Mulching around garden beds or applying a thin layer of compost or organic matter as a top-dressing can help improve soil structure and retain moisture. This also promotes beneficial microbial activity in the soil, further enhancing its health.
7. Test and Balance Your Soil
Sometimes lawn burn is caused by underlying issues such as nutrient deficiencies or soil imbalances. Conducting a soil test can reveal problems such as acidic soil or excessive salts. Use the results to adjust soil pH and apply necessary amendments to restore its health.
8. Manage Pet Urine Spots
Pet urine is a common cause of lawn burn due to its high nitrogen content. Train pets to use a specific area of the yard or flush the spot with water immediately after they go to dilute the effect. This can help minimise damage and keep your lawn uniform.
9. Aerate Your Lawn
Compacted soil can prevent water, air, and nutrients from reaching your grass’s roots. Aerating your lawn creates small holes in the soil, allowing these essentials to penetrate deeply. Early summer is a great time to aerate, giving your lawn the ability to thrive in the heat.
