As UK temperatures surpass 30C, one simple mistake gardeners make can result in a brown and patchy lawn on the verge of death. The sweltering conditions can leave grass looking brown, patchy and parched, but this is often heat-induced dormancy, which is normal during prolonged intense heat.
Proper Watering Is Key
Founder and CEO of Green Grass Nick says that watering is the most important factor in achieving a green and fuller lawn. He advised: "If you want truly green grass in this heat, you need to water it thoroughly with a sprinkler for 40 minutes to an hour every other day. That's enough to soak the soil and encourage deep root growth – the key to healthy lawns in hot weather."
For those with less time, watering every three to four days is the bare minimum to keep grass growing and preserve some colour, though it won't look as vibrant as a thoroughly watered lawn.
Watering Depth and Frequency
Gardening experts at C-I-L Lane and Garden emphasised that lawns need at least one inch of water per week. They stated: "Assuming that there are no watering restrictions, you need to water deeply and infrequently. Supply that amount all at once, not in tiny amounts, scattered over a week." They recommend using a rain gauge or an open can or jar to monitor exactly how much water the lawn receives.
Best Time to Water
Watering should only be carried out in the early morning, when water is more readily absorbed and the leaves have ample time to dry out. Watering at midday is largely wasted through evaporation, while watering late in the evening raises the risk of encouraging disease.
