In My Pretty Garden... What is that Growing??

In our garden we have allot of beautiful plants and I now recognize them and know what they are... For example:

This is Katie and she looks beautiful on a sunny Sunday morning in the garden.

This herb smells like curry

These are lovely miniature roses

And of course who could go past some yummy raspberries?

Or these lovely little flowers that self sow.

Some plums...

Or some apples slowly growing.

But then there's this plant... we have lived here for over 13 years now and last year and now this year this plant has appeared. It's unusual, very purple and large. So what is it? That I am not sure off and why has it only appeared in my garden in the last two years? I certainly didn't plant it. I assume that it is bulb.... can anyone give it a name?