How to Prune alternate-leaved butterfly bush?
Cut flowered growth back to strong young shoots below, removing up to a fifth of old stems near the base each year. Prune immediately after flowering.

alternate-leaved butterfly bush · Buddleja alternifolia
Buddleja perform best when grown in a sunny, well-drained situation. See buddleja cultivation for more detailed advice
Cut flowered growth back to strong young shoots below, removing up to a fifth of old stems near the base each year. Prune immediately after flowering.