Buddleia davidii 'Nanho Blue' in 9cm Pot Buddleja Butterfly Bush Nanho Blue' is a deciduous shrub with neat, narrowly lance-shaped leaves and slender cylindrical panicles of light blue flowers in summer and autumn Growing Details Genus: Buddleia Species: Davidii Cultivar: 'Nanho Blue' Skill Level: Beginner Exposure: Partial shade, Shade Hardiness: Hardy Soil type: Well-drained/light, Dry, Moist Height: 300cm Spread: 300cm Description Buddleja can be evergreen or deciduous shrubs, occasionally trees or scrambling climbers with simple leaves and panicles of small, tubular fragrant flowers.Flowers scented, striking white, in elongated panicles at tips of current year's growth.