The Arboricultural Association (AA) has issued a warning to anyone with trees in their garden as the UK heatwave persists with no significant rainfall forecast for most regions. Hosepipe bans have already been introduced in parts of southern England, and further restrictions are expected as dry conditions continue.
Understanding Drought Stress in Trees
The AA has published expert guidance explaining how drought affects trees of all ages, how to recognise signs of drought stress, and practical steps homeowners, land managers, and local authorities can take to help trees survive prolonged hot, dry weather. Drought stress can cause symptoms including premature leaf drop, smaller leaves, thinning canopies, and dieback. Although these symptoms may appear alarming, they are often a natural response that allows trees to conserve water. However, prolonged or repeated drought can weaken trees over time, making them more susceptible to pests, diseases, and other environmental pressures.
Advice for Gardeners
The association warns gardeners against making 'unnecessary interventions' such as excessive pruning during drought, as this can place additional stress on already vulnerable trees. Instead, tree owners should focus on good long-term management, including watering newly planted trees where appropriate, protecting rooting areas from soil compaction, and avoiding damage around the base of trees. Many water companies provide exemptions or advice relating to watering newly planted trees and other essential vegetation, so gardeners are urged to check specific guidance from their local supplier.
The Role of Trees in Climate Adaptation
The AA adds: "The latest guidance also highlights the wider role trees play in helping communities adapt to climate change. Healthy trees provide shade, reduce the urban heat island effect, improve air quality, intercept rainfall and help manage surface water - making them an essential part of creating more resilient towns and cities. As temperatures continue to rise, looking after existing trees is just as important as planting new ones. Protecting the trees we already have will help ensure they continue providing environmental, economic and social benefits for generations to come."
