In the face of escalating heatwaves, gardeners in the West of England are employing innovative strategies to safeguard their green spaces. The focus is on sustainability, resilience, and creating microclimates that provide respite from the scorching sun. Here's a breakdown of some effective techniques and insights from experts in the field.
Planting Trees for Shade and Cooling
Trees are nature's parasols, offering shade and significantly lowering temperatures. Landscape designer Rachael Austin's award-winning garden at the Royal Horticultural Society (RHS) Badminton Flower Show exemplifies this. The garden, inspired by a woodland edge, features a hazel coppice, open clearings, and layered planting, demonstrating how trees can improve cover and make gardens cooler. Austin emphasizes the importance of canopy cover, stating that it can lower temperatures by about 10C in a woodland. This is particularly crucial in the UK, where only 2.5% of the land is covered by natural woodland, and urban areas are susceptible to the 'urban heat island' effect.
Collecting and Conserving Water
Water conservation is a top priority for gardeners. Professional gardener Marcus Bergin recommends installing water butts to collect rainwater, which can be used to water plants. This simple yet effective method helps reduce reliance on mains water. Bergin also suggests using grey water, collected from showers, baths, and sinks, to water plants. However, he warns against using dishwater due to its chemical content. Garden designer Charlotte Sanderson advises watering gardens early in the morning or late at night to minimize evaporation. She also highlights the benefits of automatic irrigation systems with leaky pipes for efficient watering.
Protecting the Soil and Vegetables
For vegetable growers, Ollie Jamieson from Lush Greens in Bristol offers valuable advice. He suggests spreading a layer of mulch, such as compost or cut green material, to protect the soil surface from drying out. This simple technique helps retain moisture and supports the growth of vegetables like peas and onions, which may be affected by heatwaves. Jamieson also recommends using weeds, straw, or cardboard as mulch, emphasizing the importance of creating a barrier between the sun and the soil.
Supporting Critters and Insects
Entomologist Dee Patel highlights the ecological importance of critters like slugs, snails, and insects. Despite declines in slugs and snails due to heat, these creatures are vital for birds and hedgehogs. Gardeners can support them by leaving decomposing organic matter for feeding and avoiding slug pellets. For insects, Patel suggests creating a water source and avoiding pesticides. The Royal Entomological Society recommends going organic and providing a water source for insect-friendly gardening. Interestingly, some insects are thriving due to the heat, with flying ants experiencing a potential 100-year peak in swarming.
Conclusion
In conclusion, gardeners in the West of England are adopting sustainable practices to combat the heat. From planting trees for shade to conserving water and protecting soil and critters, these strategies not only benefit the garden but also contribute to a healthier ecosystem. As the climate continues to warm, these innovative approaches will become increasingly vital in preserving the beauty and biodiversity of our green spaces.
