At the risk of being dense, it says that the centerpieces where flowers from the garden at Highgrove. It's the second half of November. What could possibly be blooming, and in such abundance as to do all the flowers for a party like that?
I believe that there is a hothouse there, as well as at other royal homes, so that there are blooms all year round. I may be wrong on that but I am sure I have read that somewhere.
