Dwarf azalea

Dwarf azalea (Rhododendron atlanticum), also known as Coastal azalea, is a shrub native to coastal areas of southeastern North America. It is not as common as its planted cousins, nor as showy, but occasionally the shrub forms a thick understory in a forest, due to spread by underground stolons. The fragrant flowers are usually white to pink, sometimes with a bit of yellow.

It is primarily a wildflower in North America, and not widely planted, but it has been introduced and is popular in England. In the US it is regarded as a good plant for heavy soils, but will spread itself too freely if planted in sandy soils.