How to prune herald's trumpet

Immediately after flowering finishes (typically late spring to early summer). Using sharp loppers or pruning shears, remove dead or damaged stems entirely and shorten over-long shoots by up to one-third, always preserving a good proportion of two-year-old wood where flower buds will form next season.

Annually, post-bloom. Herald's Trumpet is a vigorous tropical climber that needs annual pruning to stay manageable and to flower well. Flowers form on wood two years old or older, so prune selectively — cut back only the longest, weakest, or dead shoots immediately after flowering ends. Never remove all mature wood or you sacrifice next year's blooms.

Using sharp loppers or pruning shears, remove dead or damaged stems entirely and shorten over-long shoots by up to one-third, always preserving a good proportion of two-year-old wood where flower buds will form next season.