Buddleja davidii ' Nanho Blue' is a vigorous & fast-growing Butterfly Bush, perfect for the back of a large border. Its silvery-green foliage is accompanied by a profusion of rich plumes of lavender-blue flowers from June to September, attracting both butterflies & pollinating insects in abundance to these fragrant & nectar-rich blooms. Easy to grow, this deciduous shrub is tough & reliable in almost any situation & soil type. Height & spread: 150cm (59).