‘Best time’ of day to water garden plants to achieve strong growth — it’s not the evening

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According to a plant expert, one of the "biggest mistakes" Brits make is watering their garden at the wrong time of the day.

A gardening expert has warned against watering your garden in the middle of the day, explaining that doing so could actually do more harm than good. Elise Harlock, brand manager at Prestige Flowers, explained why timing is crucial when it comes to keeping your plants healthy and thriving all summer long. The expert said: “Watering during the hottest part of the day is one of the biggest mistakes gardeners make.

Not only does it lead to wasted water, but it can also stress your plants and even cause damage.” According to the pro, watering in the middle of the day can result in rapid evaporation, meaning the plants don’t get the moisture they need. “When the sun is at its peak, much of the water you apply will evaporate before it ever reaches the roots,” she explained.



This means that, although gardeners think they’re giving plants a good drink, most of that water is actually disappearing into the air. There’s also a common myth that water droplets on leaves can magnify sunlight and scorch the plant. Whilst this isn’t as common as many believe, the plant pro noted that midday watering can still have a negative effect.

Elise explained: “If the leaves get wet and the sun is blazing, it can lead to faster dehydration. The plant focuses on dealing with heat stress rather than absorbing water properly.” To ensure plants get the full benefits, it’s essential that they are watered in the morning before the sun is too hot.

“The best time to water is early in the morning, ideally before 10am,” Elise advised. “This allows moisture to penetrate the soil and reach the roots before the sun gets too strong.” If you can’t find the time to give the garden a quick water in the morning, the next best option is the evening, but it isn’t recommended.

It’s also important not to water too late, as damp plants can encourage fungal growth and attract pests. The expert continued: “The key is deep, infrequent watering. Rather than giving plants a quick sprinkle every day, soak the soil thoroughly a few times a week.

“This encourages deeper root growth, making plants more resilient to heat and drought. “Always aim for the roots, not the leaves. This ensures the water gets where it’s needed and reduces the risk of disease.

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