Spiraea alba (white meadowsweet)

White meadowsweet is a mound-shaped deciduous shrub for naturalistic landscaping, boasting showy, fragrant flowers all Summer long and a beautiful yellow leaf color in fall. Meadowsweet flowers bloom from the top down, in spikes of tiny white flowers in terminal clusters on the shrub's erect stems. Fruits mature in September. This native shrub likes moist or wet soils. Don't let the soil dry out; it needs constant moisture. Will grow in sun, part shade, or shade but does best in full sun. Use it in a mass planting in a border, as a hedge, or planted along a walkway or lawn. Typically disease and insect free. 

White meadowsweet is native to the eastern part of North America, typically growing in bogs, swamps, wet meadows, and along stream banks and shore areas. It is a larval host as well as a nectar source for a variety of pollinators including the spring azure butterfly.