Spiraea nipponica

Spiraea nipponica is a species of flowering plant in the family Rosaceae, native to the island of Shikoku, Japan. Growing to 1.2 - 2.5 m tall and broad, it is a deciduous shrub with clusters of small, bowl-shaped white flowers in midsummer.

The specific epithet nipponica means "Japanese".

Cultivars
The cultivar 'Snowmound' has gained the Royal Horticultural Society's Award of Garden Merit.