Summersweet is a deciduous shrub that is native to the eastern United States. Its common name is derived from the fragrant white flowers that appear at the height of summer, attracting butterflies and birds. The white flowers are produced on vertical flower spikes up to 6 inches long, which are a striking feature of the plant, along with its lustrous green leaves.

The shrub grows from 3 to 6 feet high and 4 to 6 feet wide, depending on the location and growing conditions. Summersweet is tolerant of a range of garden conditions, including shade, damp soils, and clay. It suckers readily, and the suckers should be removed immediately if a more formal appearance is required. Summersweet flowers on new wood so prune in late winter. It is a versatile plant, suitable for borders or screens, or as a specimen plant.

The botanical name refers to the shape of the leaves, which are reminiscent of alder leaves.