Here's a nice Christmas Day surprise from the garden: Iris cretensis. This is only the second time this species has bloomed here, but I don't expect it to be a problem plant at all. Like its larger relatives, it can take its time becoming established in the garden. Here it grows in a cold frame. Numerous published reports suggest that it does not require that protection to survive, but the cold frame does protect the flowers.
It's bigger relative Iris unguicularis is also in bloom today - it has produced a cluster of four or five flowers. It's hard to believe such big colorful blooms come from the garden at this time of year - but that's what a well managed cold frame can do.