"Say no to war, but say it with flowers." Tistou is the son of a wealthy arms manufacturer. When he grows up, he will inherit the factory. But Tistou is very different from other children. He was sent home from school right away, and now the gardener is supposed to teach him. However, Tistou discovers something extraordinary: he has a green thumb! Whatever he touches turns into green plants. Tistou can change the whole world, and he does! Selected for the German Youth Literature Prize.