Pennisetum alopecuroides ‘Piglet’ – A dwarf Fountain Grass that is smaller than ‘Hameln’ but more showy and floriferous than the often disappointing ‘Little Bunny’. The bottlebrush plumes (white with a hint of pink) emerge from August to October, fade to buff, and usually persist into early winter before shattering. Good in containers. Grows 18″ high by 24″ wide. Hardy to zone 5.
Liriope muscari – An RHS Award of Garden Merit winner that is native of China and Japan and prefers part to full sun. This evergreen perennial is not technically a grass although it much resembles it with its green strap-like foliage. The late summer violet-purple flowers of Lilyturf are similar to Grape Hyacinth (Muscari). Grows 12-15″ high by 16″ wide. Hardy to zone 6.
Miscanthus sinensis ‘Little Zebra’ – This Japanese Silver Grass cultivar is reputed to be a compact form of ‘Zebrinus’, although with a more upright growth habit. The fine textured green foliage is heavily variegated with lemon yellow bands (up to 1″ long). Reddish-purple flower panicles appear in late summer, turning buff as they fade. Grows 3-4′ high by 2-3′ wide. Zone 5.
Bouteloua gracilis ‘Blonde Ambition’ – This cultivar of Blue Grama or Mosquito Grass is a sport of ‘Hatchite’. The species is a western North American native found in prairie and open woodland. ‘Blonde Ambition’ features bluish-green foliage with unusual flowers that emerge chartreuse and persist as blonde seedheads through winter. Grows 30-36″ high by 24-36″ wide. Zone 3.
Panicum virgatum ‘Heavy Metal’ – An upright form (not prone to flopping) of Switch Grass with beautiful steel blue foliage that turns a bright yellow in autumn. It bears airy pale pink panicles in late summer to early fall. This cultivar also provides both cover and seeds for overwintering birds. Works well towards the back of the mixed perennial border. Grows 4-5′ high by 2-3′ wide. Zone 4.