Deep Flowers portrays floral artist Azuma Makoto, whose unusual and impressive flower arrangements challenge our understanding of flowers in our environment. His radical botanical sculptures, sometimes made with thousands of flowers, have been set aflame in caves and frozen into massive blocks of ice. In 2014, he launched a bonsai pine and a bouquet into space. Deep Flowers unfolds in his Tokyo studio, where he crafts his daily creations. The story also takes us to Hokkaido for a performance installation of a 5-meter pine, and to Ota Market, the country's largest flower market.