K

Purple flowers with yellow center, grows to 12 inches. Clumping foliage. Best in sun. Zones 5-9.

Kalimeris incisa 'Edo Muraski'

Japanese Aster

Bright golden yellow, double flowers on 5 ft bushes. Zone 5-9. Best in sun.

Kerria japonica 'Plentiflora'

Double Flowered Kerria

Bright yellow flowers on white and green foliage to 3 ft. Sun or partial shade. Zone 6-9.

Kerria japonica picta

Dwarf Vareigated Kerria

Ruby-red flower heads from Summer to Fall. Compact plants to 16 inches. Best in sun.

Knautia macedonica 'Mars Midget'

Red Scabious