Mark, who fondly calls his lawn ‘Jurassic Mark’, admits his one-of-a-kind garden has cost him a whopping £27,000 – but says he ‘works hard’ to fulfill his expensive hobbyMark, who fondly calls his lawn ‘Jurassic Mark’, admits his one-of-a-kind garden has cost him a whopping £27,000 – but says he ‘works hard’ to fulfill his expensive hobby