About the Spiraea -
The Snowmound Spirea, Spiraea nipponica, is an
excellent dwarf shrub, with dense dark green foliage
and masses of pure white flowers in May. Great for
use as a foundation plant, in the shrub border or in
a garden situation.
Prune in the early spring before growth starts if
shaping is needed and then again after the flowers
are done blooming. This deciduous shrub prefers full
sun to partial shade. It does best in well-drained
soil with moderate to high levels of moisture. Prune
older stems to the ground to thin and rejuvenate.