Although this talk is especially relevant at Christmas when the whole world seems to go red its actually good all year! The two most popular houseplants then are amaryllis and poinsettia and this is their story. Love them or loathe them they dominate the Christmas flower market, and in fact poinsettias are far and away the most economically important potted plant world-wide. But what do you know about them? Where do they come from? When did they get to Britain? When did they become associated with Christmas and finally you might find out what the Dean of Manchester Cathedral was doing with Naked Ladies.