Azalea atlanticum
Coastal azalea
 
Not quite native to New England but 
 
Coastal azalea, produces white/pale pink fragrant flowers in the spring. It typically reaches a height of 2-6 feet depending on the site's sun and soil. Coastal azalea prefers acidic, well-drained soil and thrives in partial shade to full sun. Native to the Southeastern United States, its range extends from Delaware to Georgia. The coastal azalea attracts pollinators such as bees, specifically Andrena cornelli, rare in Massachusetts.
It is also a host plant for butterflies like the brown elfin (Callophrys augustinus). Birds utilize the dense foliage for shelter and nesting.
 
photo credit to David Stang