Rhododendron ( Thomas A. Edison Mollis Hybrid Azalea )
The Mollis hybrid were developed in Belgium and Holland from original azalea seed from Japan . They are derived from crosses between R. japonicum ( Japanese azalea , formerly A. mollis ) and R. pepper tree ( Taiwanese azaleas , formerly A. molle ) . Tall , good , deciduous shrub that is cold hardy down to -10 arcdegree F. Leaves are obovate to oblong , average green , 2 to 4 inches long ....