Buddleja davidii 39nanho blue39 will attract both butterflies and pollinating insects to your garden in abundance with its fragrant and nectar rich blooms a vigorous quick growing butterfly bush it is perfect for the back of a large border the silvery45green foliage is combined with a profusion of rich plumes of lavender blue flowers from june to september an easy to grow deciduous shrub it is tough and reliable in almost any soil and situation height and spread 150cm 4059