To coincide with the launch of our new monograph, Nature Preserved: The Definitive Guide to Preserved Plants, we talk to its author, Edgardo Rossi, known as The Green Man, about the thinking behind the book and his pioneering Green Lock System. What has years of working with preserved botanical material taught him about design, sustainability and the spaces we inhabit? We explore when living plants should come first, why designers need to walk the space before choosing the greenery, and how cork, bio-based materials and real preserved plants come together. We also challenge common misconceptions about longevity, maintenance and air quality—and ask why real nature should never be forced or faked.