Rhododendron x ‘Antilope’ (syn. ‘Antelope’) (Viscosum Hybrid) – This cross of Rhododendron viscosum and Azalea ‘Koster’s Brilliant Red’ produced a late blooming (May to June) deciduous azalea with sweetly fragrant salmon-pink flowers accented with a hint of yellow. It is a 2012 RHS Award of Garden Merit winner that was bred back in 1938. Grows 4-6′ high. Hardy to zone 5.