Bonn, Germany May 9, 2022 Muku tree (March, 2017) Kurogane holly (April, 2017) Muku tree (April, 2017) Kurogane holly (June, 2017) Muku tree planting ceremony at the Bonn University Botanic Gardens (September, 2018) Muku tree planting ceremony at the Bonn’s Rheinaue Park (August, 2020) (Photos: Courtesy of the City of Bonn)