Buddleja davidii 'Nanho Blue' (butterfly bush [Nanho Blue]) is a member of the Scrophulariaceae family. This deciduous shrub exhibits a bushy growth habit and is characterized by its deciduous foliage. It has a hardiness rating of hardy – very cold winter (-20 to -15ºc), and is hardy throughout the uk and northern europe. many plants grown in containers will be damaged unless given protection. .
When fully mature, Buddleja davidii 'Nanho Blue' can reach an ultimate height of 1.5–2.5 metres and a spread of 1.5–2.5 metres. For optimal growth, it prefers west–facing, south–facing aspect and exposed, sheltered exposure. It thrives best in chalk, loam, sand soil types and should be placed in a full sun position.
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