One in a Million Dalek

The One in a Million Dalek was a rebel Dalek on Skaro which possessed human-like qualities (such as the ability to appreciate beauty) collected flowers in its quarters, prevented the destruction of flowers, and decorated itself and its followers in flowers. Eventually, the Emperor confronted the Dalek and pointed out that the flowers it wore were dying, proving that the strength of beauty did not last. (TV21: Shadow of Humanity)