Rhododendron ( Clarice Exbury Azalea )
The Knap Hill and Exbury azaleas are English hybrids leave from crosses between R. molle , R. calendulaceum , R. arborescens , and R. occidentale . Upright , stalwart , deciduous bush with elliptic to oblong , 2 to 6 column inch long leaves . Flowers are borne in huge , showy truss of 18 to 30 blooms per cluster . Bloom clock time is from mid to previous spring ....