There's a large spot at the front of my house underneath an awning that doesn't get any direct sunlight (except for in the early morning hours). And I'd really like to add some foundational shrubs to grow against the side of the house. I've considered just filling the whole space with boxwood. The problem is that I'd like to have something colorful and pretty there too.

Does anyone know of any mounding / shrub-like periennials that:

1. Thrive in the shade
2. Can tolerate cold winters
3. Bloom

( any and all advice would be appreciated! )