|Spiraea japonica Nana is a dwarf, mounding deciduous shrub. Sharply toothed leaves are deep green on top, grayish-green below, lance-shaped, to 1/2 inch long, persistent into fall, and almost evergreen in warmer climates of the south. In summer, showy, deep pink flowers are borne prolifically in upright, rounded corymbs to 1 inch in diamter. Spiraea can be nipped by late frost, prune after flowering. Fast growing, good for filling a space in a shrub border. Prefers full sun and well drained soil. Native to China and Japan.