How to prune snowball bush

Immediately after flowering (late spring to early summer). Cut spent flower clusters back to a strong leaf node or lateral shoot. To renew the plant, remove one to two of the thickest oldest stems to near ground level each year after bloom. Avoid pruning in autumn or early spring as this removes the already-formed flower buds.

Annually after flowering. Snowball bush (Viburnum opulus 'Roseum') produces its large white pompom flowerheads on wood grown the previous year, so timing is critical. Prune immediately after the flowers fade in late spring to early summer. Deadhead spent flower clusters, then remove one or two of the oldest stems to the base each year to keep the plant vigorous and shapely.

Cut spent flower clusters back to a strong leaf node or lateral shoot. To renew the plant, remove one to two of the thickest oldest stems to near ground level each year after bloom. Avoid pruning in autumn or early spring as this removes the already-formed flower buds.