Rhododendron calendulaceum 
 
Native primarily to woodland slopes and mountain balds in the Appalachian Mountains from Pennsylvania to Georgia. This species is an important parent of many deciduous azalea hybrids. 
 
Plant flame azalea in full sun to partial or deep shade with moist, well-drained, acidic, loamy or sandy soil.  It does not tolerate dense clay so amend with organic material if necessary. Protect from afternoon sun, which can scorch the leaves.  Rabbit browsing is tolerated well.
 
The fiery red orange nectar rich flowers appear from late spring to mid-summer and attract pollinators.  The thin, gray-brown bark is showy and adds winter interest in the garden with its finely shredded appearance.
 
Slow to establish, this plant is ideal to add some bright, warm spring color in a woodland or naturalized landscape. Use it as a specimen or plant it in groups for a shrub border or even as a hedge.  Add it to a pollinator garden where it will attract butterflies, bees, and hummingbirds.