Charlie Dimmock and award-winning garden designers the Rich brothers compete to design gardens for homeowners around the country. Charlie and the Rich brothers are in Marlborough, Wiltshire, to meet microbiologist and keen photographer Usha who wants a garden that will be a welcoming habitat for all sorts of birds, small mammals and invertebrates. Usha has another important requirement on her wish list, as a vegetarian she wants to grow all her own fruit and veg. Usha has an eye for detail and wants to pack a lot into her small plot so the designers have their work cut out. With a ú6,000 budget, turning an unremarkable space that's dominated by a brutish conifer into a welcoming B&B for wildlife and a relaxing, productive, beautiful garden for Usha is a tall order.