Who ordered that?

What on earth are these and wherever did they come from? I noticed them first at the end of October - lots of little green shoots sprouting in the container that had held my Four o'clocks and a couple of Honesty. They were clearly bulbs, and there were about twenty of them, so no chance of them having self-seeded.

I've racked my brains and I have absolutely no memory of having planted bulbs in that container. If I did, they must have gone in at the beginning of spring, if not before. I don't actually remember planting any bulbs since last autumn. But what are they, and why have they come up now of all times of the year?

I did have a quick look round the container to see if there might be an old forgotten label lying around. But I know myself too well to have really believed I'd find one. Label the containers? Who me?

So it's wait and see time. Till next spring presumably, when with any luck there'll be some flowers. Oh well, only four months to go ...