Well, I guess I'm stretching the "garden" point, but this plant was in my screened porch all summer and started to bloom shortly after I brought it inside (because nights were getting too cold).

Some people call it "Christmas Cactus" but it can bloom at different times of the year. Find out more about Schlumbergera's here: http://www.desert-tropicals.com/Plants/Cactaceae/Schlumbergera.html