In late June, as temperatures soared across the UK, cricket matches faced unprecedented heat challenges. At Trent Bridge, the England and Wales Cricket Board activated its extreme heat policy, adding water stations, ambulances, and doctors to protect players and spectators. The conditions turned the match into an endurance event, highlighting the difficulty of mitigating heat in an open-field sport.
Trees as natural cooling systems
One simple, effective solution for recreational and first-class grounds is planting trees. Trees reduce air temperature through shade and transpiration, releasing water into the atmosphere. They also reduce air pollution, alleviate stress, and boost immune systems—all at no cost.
For cricket, the willow tree stands out. Not only is it the source of cricket bats, but it is also a wildlife powerhouse. Naturalist Mark Cocker, a judge for The Cricketer magazine’s Greenest Cricket Ground competition, explains: “More invertebrates live on willow trees (452 species) than any other tree, with oaks a close second at 423. Willows also support 160 lichens. Their March blossom is a lifesaver for spring insects, and their aphid infestations provide rich protein for birds all summer.”
Willows: nature’s clean-up crew
Willows have a remarkable ability to absorb heavy metals, excess nutrients, and pesticides from contaminated soil and water—a process called phytoremediation. “They are nature’s clean-up team,” Cocker adds. They grow quickly, reaching full height in 20 years, and propagate easily from cuttings. However, they should not be planted near clubhouses or drainage systems, and in dry areas, cuttings must reach the water table.
Scientific research supports the cooling power of trees. Cambridge University researchers found that trees can reduce urban air temperatures by up to 12 degrees Celsius, provided the right species are placed appropriately. Ronita Bardhan, Cambridge professor of sustainable built environment and health, notes that cricket grounds benefit from tree-lined perimeters: “The wide open space allows heat to escape fast, and trees help ventilate by moving accumulated air upward. Willow is particularly suitable, as long as it doesn’t alter wind velocity to disrupt play.”
Climate urgency and equity
With the UK recording its hottest May and June days on record, and European heatwaves threatening events like the Tour de France, the need for adaptation is urgent. Inequality means the poorest populations suffer most from extreme heat, making trees around urban sports grounds vital. Trees also aid flood control during heavy rainfall. Planting is not an instant fix, but it is simple, relatively cheap, and a positive step for future generations.
There is currently a shortage of willow for cricket bats—a gap that bamboo might fill—making willow planting symbolic. A tree that has supplied the game for centuries now protects its future. As Cocker concludes, “Willows are in effect ecosystems.” For cricket fans, that’s a touch of romance.
