This is the sparkling silver leafed form of this beautiful species. It has all the virtues plus its distinctly silver foliage, having leaves covered by silky hairs which gives the plant its silvery appearance. Other than that, it is identical to Buddleja alternifolia, described below.
I first saw Buddleja alternifolia four decades ago in the Cambridge University Botanic Gardens on a beautiful sunny June day. Swathes of elegantly arching branches were enveloped from top to toe with fragrant lilac-purple flowers. This ancient specimen was huge and given pride of place in the centre of a lush lawn.
The next time I saw it was in the late Dame Elisabeth Murdoch’s walled garden where it was beautifully grown as a small weeping standard. Whilst this Buddleja can get very large, it is easily kept in line with a good cut back after flowering to a manageable 2 metres tall by 2 metres width. It is endemic to the Chinese province of Gansu which has very hot summers and very cold winters and rarely if ever needing supplementary irrigation.