Dierama trichorhizum

One of the hardier members of the genus, this is a good Zone 7 and sneaking into favorable conditions in upper Zone 6. A smaller species to just a couple feet tall, this Harebell has the typical wiry stems and 4-5 narrow lavender-pink bells which dance in the breeze. Letting this self-sow to create a small, wild meadowlet wouldn't be the worst thing you have done in your garden. Sun and even moisture is about all this easy perennial requires. And pretty much deer resistant too!