Water is a precious resource. August is a crucial month for gardeners to use it wisely. The current high temperatures and dry spells mean that some plants are at risk of drying out quickly, especially those in containers, hanging baskets, and recently planted shrubs. To keep your garden healthy and vibrant, it’s essential to understand how and when to water.

Pots and hanging baskets are particularly vulnerable in hot weather because their roots are confined to a small space and can’t reach deep moisture. During a heatwave, they may need watering daily. The best approach is to use an irrigation system, such as a solar-powered system that draws water from a container or a battery-operated timer connected to an outdoor tap. If you are watering by hand, wait until the top inch of soil feels dry before you water again, and give the plants a good soak. Another helpful tip is to move containers to a shadier spot during the hottest part of the afternoon to help reduce water evaporation.

For new shrubs and perennials planted this year, a good soaking once or twice a week is far more effective than frequent, shallow watering. A shallow watering only wets the top layer of soil, encouraging roots to stay near the surface where they are more susceptible to drying out. Deep watering, on the other hand, encourages the roots to grow deeper into the soil, helping the plant establish a strong foundation.

The timing of your watering is also key. The best times are early in the morning or late in the evening. Watering during the cooler parts of the day minimises evaporation, ensuring that more water reaches the plant’s roots. Watering in the middle of the day can be wasteful, as much of the water will evaporate before it has a chance to soak in. Watering in the hot sun can also cause scorching of the leaves. By being mindful of your watering practices, you can conserve water and help your garden thrive through the end of summer.