Gardeners across the UK are being urged to water their plants early in the morning or late in the evening as temperatures are set to reach up to 36C this Thursday. Experts at St. John's garden centers say the extra work involves avoiding pruning during hot spells, ensuring adequate watering, and timing it correctly.
Best Time to Water
Experts said one of the most common questions is when to water the garden in hot weather, and that the best time is early in the morning or late evening. "Morning before 10am is ideal. The soil can absorb the moisture before the heat of the day sets in, and any splashed leaves have time to dry, reducing the risk of disease."
"If mornings aren't an option, the evening after 6pm is your next best bet. But, just avoid soaking foliage overnight, which can encourage mildew." However, morning watering is generally preferred where possible, as it allows the soil to dry naturally throughout the day.
Container and New Plants
Plants growing in containers and hanging baskets should be watered daily, especially if they are positioned in direct sunlight. Newly planted specimens and seedlings require watering every one to two days until they become established. For mature plants and shrubs, experts recommend watering thoroughly once or twice a week to promote deeper root development.
The experts added: "The key is watering deeply and less frequently; this helps plants grow resilient roots that dig deep into the soil rather than relying on surface moisture."
Signs of Water Stress
Plants in need of water may display wilting or curling leaves, along with soil that has begun to shrink away from the sides of containers. Further indicators include pale or scorched foliage and a parched, dusty soil surface. The experts noted: "Keep an eye on soil colour too. Dry soil tends to appear lighter and dustier, whereas moist soil is darker and clumps together when squeezed."
