Colvile Butterfly Bush An unusual and very desirable buddleja for warmer areas, Buddleja colvilei is a large, deciduous shrub or small tree, with a broad, bushy, upright habit. The long, lance-shaped, pointed leaves emerge quite felted, turning silvery-green, a lovely foil for the flowers. In May and June, the Colvile butterfly bush bears pendulous panicles of tubular, open-mouthed, deep crimson or deep pink flowers at the ends of the stems; the flowers are attractive to bees and butterflies. Protect the plant in winter for the first couple of years; established plants seem to be hardy. Prune after flowering. Site: Sheltered, warm, sunny siteSoil: Any well-drained soilPosition: Flowers best in full sun; tolerates partial shadeSeason of interest: Early summerHardiness: Fairly hardyHeight: up to 26’ (8m) Spread: 26’ (8m)