Rhododendron ( Albatross Knap Hill Azalea )
The Knap Hill and Exbury azalea are English hybrids result from crosses between R. Schinus molle , R. calendulaceum , R. arborescens , and R. occidentale . Upright , hardy , deciduous bush with egg-shaped to oblong , 2 to 6 inch foresightful leaves . Flowers are bear in huge , showy trusses of 18 to 30 efflorescence per cluster . Bloom clock time is from mid to late spring ....