In the face of escalating heatwaves, gardeners in the West of England are employing innovative strategies to safeguard their plants and green spaces. The focus is on sustainable practices that not only protect the environment but also contribute to cost savings and long-term resilience. Here's a detailed exploration of some effective methods being adopted by these dedicated gardeners.
Planting Trees for Shade and Cooling
One of the most effective ways to combat the heat is by planting trees. Landscape designer Rachael Austin, who won gold at the RHS Badminton Flower Show, emphasizes the importance of trees in creating shade and cooling gardens. Her garden, the Artisan Woodland Craft Garden, showcases a woodland edge with hazel coppice, open clearings, and layered planting, demonstrating how trees can significantly lower temperatures by providing canopy cover.
According to the RHS, the UK's low woodland coverage of only 2.5% contributes to the urban heat island effect, where built-up areas experience higher temperatures. Austin calls for a collective effort from gardeners to increase canopy cover, noting that the UK lags behind other European countries in this regard. By planting trees, gardeners can actively contribute to reducing ground-level temperatures and creating a more sustainable and cooler environment.
Collecting and Reusing Water
Water conservation is another critical aspect of gardening in hot weather. Professional gardener Marcus Bergin advises collecting rainwater in water butts, which can be filled quickly during winter and used to water plants before mains water. This simple yet effective method not only saves money but also reduces the strain on water supplies during droughts.
Bergin also highlights the use of grey water, which is excess water from showers, baths, and sinks, diverted into butts after installing grey water systems. While kitchen sink and toilet wastewater cannot be used due to chemical content, grey water can be a valuable resource for plants, as suggested by the RHS, provided it is not from sources like dishwashers that may contain harmful chemicals.
Protecting the Soil and Mulching
For vegetable growers, protecting the soil is crucial. Ollie Jamieson, director of Lush Greens, a market garden in Bristol, recommends spreading a layer of mulch, such as compost or cut green material, to shield the soil surface from drying out. This simple technique helps retain moisture, ensuring that vegetables like peas and onions don't finish early or dry out due to heatwaves.
Jamieson also suggests using weeds, straw, or cardboard as mulch, emphasizing the importance of creating a barrier between the sun and the soil. This approach not only conserves water but also contributes to a healthier and more resilient garden ecosystem.
Supporting Critters and Insects
Entomologist Dee Patel stresses the importance of protecting insects, snails, and slugs, which are vital ecological assets. Despite declines in slugs and snails due to heat, gardeners can help by leaving out decomposing organic matter for feeding and avoiding slug pellets, even if they are organic. This approach supports the natural predators of these creatures, such as frogs, toads, and ground beetles.
Patel also notes the increase in swarming insects due to the heat, highlighting the need for insect-friendly gardening practices. The Royal Entomological Society's tips include avoiding pesticides, leaving long grass, and creating water sources like chemical-free ponds. Even small water bowls can be beneficial, as demonstrated by Charlotte Sanderson's garden, which features a shallow water bowl made from porous cement.
Conclusion
In conclusion, gardeners in the West of England are taking proactive measures to combat the heat and protect their green spaces. By planting trees, conserving water, protecting the soil, and supporting critters and insects, these gardeners are not only ensuring the survival of their plants but also contributing to a more sustainable and resilient environment. As the climate continues to warm, these practices will become increasingly vital, offering a glimmer of hope for the future of our gardens and the planet.
