Wreath

A wreath was a decorative arrangement of flowers and leaves.

Helen Sinclair's mother had a wreath of orchids at her funeral. George believed that she would have liked it. (AUDIO: Absent Friends)

Wreaths were a common decoration at Christmas, typically being hung on doors. (TV: The Doctor, the Widow and the Wardrobe, COMIC: Holiday Special)

References in invalid sources
A Christmas wreath was once placed on the front doors of the TARDIS. (NOTVALID: Festive Thirteenth Doctor Yule Log)