A practical guide to designing, constructing, and maintaining sustainable green roof gardens.

Dating back to one of the Ancient Wonders of the World, the Hanging Gardens of Babylon, living roofs have undergone a revival of interest as a vital element of sustainable design. Today, rooftops are being transformed into wildflower meadows, productive kitchen gardens, and communal green spaces—enhancing both the built environment and biodiversity.

With growing environmental pressures, green roofs offer tangible benefits: managing stormwater, reducing urban heat, improving insulation, and creating habitats for wildlife. As legislation such as Sustainable Drainage Systems (SuDS) and Biodiversity Net Gain drives wider adoption, green roofs are becoming a key tool in architecture, planning, and regenerative design.

In Green Roof Gardens, sustainable gardener Angela Youngman explores the full potential of living roofs, offering expert guidance for householders, architects, designers, and developers. From weight and drainage to access, planting, and maintenance, this book covers the core considerations for planning and building successful green roofs.

Illustrated with beautiful photography and insightful case studies, this guide celebrates climate-conscious planting, and innovative design. Each chapter includes step-by-step advice and clear checklists to take your project from concept to completion.

Whether you’re developing a rooftop wildlife haven, food-growing space, or urban leisure garden, this practical and inspiring book gives you the tools to design and maintain a thriving green roof.