As our parks and gardens bake to a crisp, luscious green lawns are starting to feel like a distant memory. That can be a challenge when selling your home, given that gardens are deal-breakers for more homebuyers than ever. As well as stopping people in their tracks while scrolling through online listings, your garden can be the deciding factor in turning a viewing into a sale. But traditional gardens are beginning to struggle with a changing climate. To keep them green, healthy and resilient through hotter summers and soggy winters, professional gardeners are digging around for alternative planting ideas and sustainable new techniques. Regardless of hosepipe bans, conserving water is…