How to prune arrowwood viburnum

Immediately after flowering in late spring, or late winter before new growth. For renewal, cut one-third of the oldest, thickest canes to near ground level each year over three years, using loppers. For light shaping, trim back wayward shoots to a side branch. Never shear flat — this removes flower buds and spoils the form.

Light renewal pruning every 2-3 years; deadwood removal as needed. Arrowwood Viburnum (Viburnum dentatum) is an adaptable, multi-stemmed native shrub that benefits from occasional renewal pruning. Prune immediately after flowering in late spring or in late winter before buds break. Remove the oldest, thickest stems at the base every few years to rejuvenate the plant. Avoid shearing, which ruins its natural arching form.

For renewal, cut one-third of the oldest, thickest canes to near ground level each year over three years, using loppers. For light shaping, trim back wayward shoots to a side branch. Never shear flat — this removes flower buds and spoils the form.