In a special programme, Carol Klein and Nick Bailey celebrate gardeners throughout the country who have created some truly unique gardens and made every space count. Carol meets a couple in Dorset whose garden is full of inspirational features, and Nick is in his own city garden, giving his design and gardening tips for making the most of limited spaces. Frances Tophill travels to the Isle of Man to find out how a community of gardeners cope with extremes of weather, while Joe Swift is in Cardiff visiting an extraordinary water-filled front garden. In Sheffield, one man’s garden is given over to homes for wildlife, and we discover the challenges of gardening on the balcony of a high-rise in Manchester. And, of course, there’s plenty of inspiration from our viewers's own gardens. Adam Frost travels to Sissinghurst Castle Gardens to view a new area of the garden which was inspired by a visit to the Greek island of Delos, and in Berkshire we find out how one enthusiast keeps her garden full of interest in every season of the year. In West Sussex, we get tips on producing the perfect dahlia from a grower with over 50 years of experience, and we travel to Kent where we meet a gardener with a passion for colourful containers. We also get plenty of inspiration and tips from our viewers' gardens.