Blue Moor Grass
Seslaria caerulea
Size: 12".    
Light requirement: full sun to part shade.
Flowering - time/color: mid-spring/bluish purple.
Foliage - spring/summer: silvery blue-green.
Foliage - fall/winter:  
Attributes: graceful arching foliage, and compact size.
Good as a ground cover when massed.