How to Keep Grass Green in Summer

Keeping the garden looking attractive through the hottest seasons of the year calls for effective strategies to counter heat stress. Many people deal with dry, yellow grass without realising that minor changes to daily care can restore the garden’s natural vitality.

How does intense heat affect the health of your lawn?

Severe heat speeds up evapotranspiration, quickly dehydrating the blades and leaving the soil unprotected. Once the plant cover loses strength, shallow roots can be badly damaged, preventing the proper uptake of nutrients needed for leaf recovery.

Mowing the lawn too short removes the layer that helps the soil retain moisture, making heat stress worse. This lack of suitable care leaves the ground directly exposed to sunlight, causing a yellowed appearance and reducing its natural resistance.

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Why is the one-third rule vital in summer?

Following the well-known one-third rule prevents drastic mowing that places the plant under stress during periods of intense heat. Removing only the upper portion ensures the grass keeps enough leaf growth to carry out photosynthesis in a healthy way.

This mowing method retains moisture in the soil and shields the plant crowns from direct sun exposure. By observing this limit, growth remains balanced, encouraging excellent lawn recovery and preventing the unwanted dried-out look.

Below is a video from the STIHL Brasil YouTube channel featuring useful advice on this type of maintenance:

What are the essential watering measures for grass?

Correct summer watering requires consistency and enough volume to reach the deeper layers of the ground. Light surface watering encourages shallow roots, which are highly vulnerable to Senegalese heat and hinder the proper hydration of the vegetation.

Providing the right weekly amount keeps the soil moist and healthy at the depth required for plant development. This helps the blades stay green, prevents dreaded yellowing, and strengthens natural defences against stress.

Efficient Watering Guide

Summer Water Parameters

Follow these practical recommendations to hydrate your lawn properly:

1. Apply around 15 litres of water per square metre each week;
2. Check water penetration by digging slightly into the soil to assess deep moisture;
3. Carry out the footprint test to confirm whether the ground genuinely needs watering.

How can you maintain the lawn properly without harming the roots?

Adjusting the mower height is essential to protect the base of the plants. In areas with full sun, keeping the grass between four and five centimetres high provides the shade needed to preserve the soil’s nutrients and vitality.

In shaded spaces, the blades should be left longer, at between five and seven centimetres. This smart distinction ensures every part of the garden receives appropriate care, producing more uniform and far more resilient growth.

The main tools and techniques needed to achieve this are listed below:

• Use brushcutters to reach awkward corners and obstructed edges;
• Mow weekly to prevent an excessive build-up of old blades;
• Use the cuttings as protective organic mulch over the soil.

What are the secrets to keeping soil healthy at all times?

Applying organic fertiliser is an excellent way to rebuild soil structure worn down by high temperatures. Spreading the material with dedicated sprayers or by hand encourages essential microbial activity, restoring the minerals the grass needs to grow strong.

The footprint test is also a highly practical tool for monitoring the true condition of the ground. If the vegetation springs back quickly after being stepped on, it shows that the soil is retaining suitable moisture, keeping the garden protected.