Zone 4

...

Bright blue foliage sticks straight up. A midwest native selection. Excellent yellow flowers change to beige. Can spread semi-aggresively.

...

I’ts a low growing groundcover with heart shaped leaves. An attractive dark red flower will appear under the plant early spring but will fade fairly quickly. Deer resistance.

...

Tiny red and white flowers look like little angels dancing under the leaves. Bright green foliage with red veins. Excellent ground cover for dry areas in deep shade.

...

Buttery yellow flowers dance just below semi evergreen foliage.

...

Green foliage with red edges turns more red as fall creeps in. Red seed heads float above the foliage late summer

...

Reliably red foliage from mid summer until fall. Red seeds above the foliage. Great old school plant.

...

Fine textured foliage grows low to the ground. Can handle a good amount of moisture. Great for the edges of rain gardens.

...

Dense, upright, columnar habit with grey-green leaves. In the fall, the tips of the leaves are flushed with a hint of rosy-red. 

...

Forms a dense, upright clump of blue-green leaves that turn wine red in early summer. Purple flower panicles appear just above the foliage in late summer.

...

Steely blue foliage turns beige in fall with deep red seed heads floating above. Very upright plant