How to Prune Colvile 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.
Colvile butterfly bush · Pruning
Colvile butterfly bush · Buddleja colvilei
Needs a sunny, sheltered spot with excellent drainage; in areas prone to winter wet, it may be best grown in containers and overwintered in a cool greenhouse. See buddleja cultivation for more detailed advice
Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sunInformation to be completed