Amethyst Shooting Star
Dodecatheon amethystinum
I planted a few of these in a flower box by the front door. They are one of the prettiest flowers I've seen. The flower box stays outside all winter. I suspect the soil gets colder than normal ground. They seem to have no trouble with that.
When one tugs at a single thing in nature, he finds it attached to the rest of the world.
John Muir