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  • Writer's pictureNicole Chicas

Summer Tree Care: Preventing Heat Stress in City Trees

Updated: Jun 12


Dead tree diseased by over hr

Trees are an important part of the urban landscape and can offer cities much needed shade, air purification and heat control. As global temperatures rise, learn how can keep your urban trees safe.


According to the USDA Forest Service, urban trees can reduce ambient temperatures by up to 9°F, making them essential for combating urban heat islands.

As the summer sun blazes, trees face the challenge of coping with extreme heat. Heat stress can have significant impacts on their health and longevity. Understanding how to recognize and prevent heat stress is crucial for maintaining the vitality of your trees during the hot months. In this blog, we'll explore the signs of heat stress, preventative.


Statistics on The Importance of Trees in Urban Spaces and Heat Stress


  • Studies have shown that during extreme heatwaves, tree mortality rates can increase by up to 20% due to heat stress and dehydration.


  • Research from the University of California indicates that shaded areas under trees can be up to 25°F cooler than surrounding areas.


  • The American Public Works Association found that cities with robust tree canopies experience 15% less energy use for cooling during summer months.



Recognizing Heat Stress in Trees

Heat stress in trees can manifest in various ways. Early signs include wilting, yellowing of leaves, and premature leaf drop. More severe symptoms are scorched leaves, bark cracking, and reduced growth. Recognizing these signs early allows for timely intervention.


Preventing Heat Stress on Urban Trees


  1. Adequate Watering: Ensuring trees receive enough water is the first line of defense against heat stress. Deep watering helps maintain soil moisture levels.

  2. Mulching: Applying mulch around the base of trees helps retain soil moisture and regulate temperature.

  3. Pruning: Proper pruning reduces the tree's energy expenditure and helps it focus on maintaining vital functions.

  4. Shade Protection: Temporary shading structures can protect young or vulnerable trees from intense sunlight.


By recognizing the signs of heat stress and implementing preventative measures, you can help your trees thrive even in the hottest summer months. Ensuring their health not only benefits your landscape but also contributes to a cooler, more pleasant environment.


For expert advice and professional tree care services, visit our Tree Trimming Services page to schedule a consultation with M&R Tree Service.

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