Prune Weigela after its main flowering period in late spring or early summer. Remove dead, damaged, or overcrowded branches to improve airflow and plant health. Light shaping helps maintain a compact form and encourages reblooming in some varieties. Older plants may benefit from rejuvenation pruning, where a few of the oldest stems are removed at the base. Avoid heavy pruning late in the season, as this can reduce next year’s blooms. Regular maintenance supports vigorous growth, enhances flowering, and keeps the plant looking neat and attractive, ensuring it remains a standout feature in the landscape.