Tags: Cultivar (Cultivated Variety).
Buddleja davidii ‘Empire Blue’ is an old cultivar raised by Karle A. Lucal and introduced by the Good & Reese nursery Ohio in 1941 (patented 1942). ‘Empire Blue’ was accorded the RHS Award of Garden Merit (AGM) in 1993 but has become eclipsed by more recent cultivars such as ‘Blue Horizon’ another AGM winner with larger panicles of a superior hue. Accordingly ‘Empire Blue’ has been entered onto the RHS ‘Sunset List’ for rescission of its AGM. [1]
