To extend the flowering and improve the overall appearance of the plant, you should remove faded flower clusters as soon as practicle (light shearing is an option).
It tolerates a wide range of soils, including clay. However, it will also thrive with light afternoon shade if sited in a place with hot summer climates. It grows well in average, medium moisture, well-drained soils in full sun to bring out the best blossoms. For most Spiraea species, the height can range from 5 to 8 feet high and an equal spread however, Snowmound tends to be a bit smaller with a 2 to 4 foot height. When young it is a slender, slightly arching, shrub, but becomes denser and mounded with age. Spiraea nipponica, or Snowmound Spiraea, is a drought-tolerant, flowering, deciduous shrub growing rapidly to its full size. Phonetic Spelling spy-REE-ah nip-PON-ih-kuh Description
