Spirea 'Little Princess'

Spirea
Spirea japonica 'Little Princess'  is a low deciduous shrub with slender branches and mint-green foliage. The delicate rose-pink flowers bloom from mid summer through fall.. The foliage of this compact, mounding shrub turns red in the fall. Spirea prefers sun, will tolerate semi-shade and will grow to a height of 24-30 inches and a width of 3 feet. It is a wonderful choice for a low hedge, borders, mass plantings or as a specimen.

Some other varieties to look for are:
'Goldmound'  Pink flowers and golden-yellow foliage. Pictured below.
'Magic Carpet'  Pinkish flowers and yellow-gold foliage, very low.