Rhododendron ( C.B. Van Nes Mollis Hybrid Azalea )
The Mollis deciduous azalea loan-blend were recrudesce in Belgium mainly from R. japonicum , but the ancestry includes R. molle and possibly R. viscosum , as well as many other coinage and hybrids . They are tall , upright plants , best in light refinement to full sun . The Mollis cross are often more resistant to heat than the Knap Hill azalea . The single flower bloom in mid to late season in clusters of 7 to 13 blossoms ....