When some of your flowers in the garden have "gone to seed" try picking them and leavinallium seed headg to dry before spraying them with a gold or silver Oasis Spray.  This will give them a new lease of life for your Christmas Arrangements.  Some which lend themselves to this are Agapanthus, Honesty, Crocosmia and Poppy seed heads.  Sea Lavendar sprays also look very nice sprayed and then dipped in "glitter"...