Rhododendron ( Cockatoo Knap Hill Azalea )
The Knap Hill and Exbury azalea are English hybrids result from crosses between R. molle , R. calendulaceum , R. arborescens , and R. occidentale . unsloped , brave , deciduous shrub with elliptic to oblong , 2 to 6 in recollective folio . Flowers are brook in huge , showy trusses of 18 to 30 blooms per clump . Bloom time is from mid to late spring . The deciduous hybrid azalea , like its aboriginal counterpart , is known for splendid fall colour and unsurpassed spring bloom ....