Rhododendron ( M. Koster Mollis Hybrid Azalea )
The Mollis hybrids were modernise in Belgium and Holland from original azalea seed from Japan . They are derive from crosses between R. japonicum ( Nipponese azalea , formerly A. mollis ) and R. molle ( Chinese azalea , formerly A. molle ) . Tall , just , deciduous bush that is cold hardy down to -10 degrees F. Leaves are obovate to oblong , average green , 2 to 4 inches long ....