Gardeners across the country are preparing to mow their lawns this spring, but achieving that coveted lush, green appearance requires more than just regular trimming. According to horticultural experts, there is an exact time of day that should be followed to ensure healthier, more vibrant grass. Mowing at the wrong time can actually cause significant harm, leading to issues like browning, rot, or disease, rather than promoting growth.
The Impact of Timing on Lawn Health
While many view lawn mowing as a simple chore that can be done at any convenient moment, the specific time you choose to cut your grass has a noticeable effect on its overall health, colour, and durability. Grass that is mowed during very hot or wet conditions is particularly susceptible to turning brown, developing rot, or contracting diseases. Additionally, cutting the grass too short or at an improper frequency weakens the root system, making the lawn more vulnerable to weed invasion and drought stress.
Expert Insights on Mowing Seasons
Specialists from Hayter, a company with over 75 years of experience in manufacturing mowers, emphasise that April to May is the critical period to begin cutting your grass. They explain that during this time, grass growth is slower compared to the summer months due to shorter nights and lower average temperatures. As a result, they recommend starting with mowing every two weeks, using a higher cutting height, then gradually reducing the interval to every 10 days, and eventually mowing weekly by mid-May, when temperatures consistently exceed 10°C.
The Ideal Time of Day for Mowing
But what is the exact time in the day when you should mow your lawn? Hayter experts reveal that the optimal window is from mid-morning to early evening. However, this can vary based on factors like sunlight exposure and temperature. They add that it is crucial to consider the orientation of your garden; for instance, south-facing gardens receive sunlight until later in the day, which may affect the ideal mowing time. As the mowing season progresses towards its end, it is advisable to mow when the sun is at its highest or during the warmest part of the day.
Common Mistakes and Professional Advice
Ivana Agustina, Head of Project Management at ShrubHub, an award-winning online landscape design service, notes that homeowners frequently mow their lawns at incorrect times, as reported by the Express. In spring, Ivana recommends mowing between 9 am and 11 am, once the morning dew has evaporated and temperatures remain cool. This timing allows for clean, precise cuts without placing undue stress on the grass.
Cutting before 8 am can result in uneven trimming due to residual moisture, while mowing between 2 pm and 4 pm poses risks of damaging the lawn during peak heat and reducing its ability to retain moisture. Ivana shares that many homeowners are puzzled by patchy, yellowing grass despite following other lawn care rules. Often, the issue stems from the timing of mowing. Simply adjusting your schedule by a few hours can significantly enhance your lawn's resilience against weeds, disease, and heat damage.
Fortunately, lawns are remarkably forgiving. If you have been mowing at less-than-ideal times, there is still ample opportunity to modify your routine and observe tangible improvements this season. By adhering to these expert guidelines, you can foster a healthier, greener lawn that thrives throughout the year.



