How Far Can You Cut Back a Viburnum Hedge?

Viburnum tinus and Viburnum odoratissimum are tough, evergreen screening plants widely used across Sydney. Their dense branching habit means they can tolerate harder pruning than many hedges, making them a good choice when an old hedge has outgrown its space.

As a general rule, you can cut Viburnum back by up to one-third to one-half of its total height and width in a single prune. If the hedge is very overgrown, it is often better to reduce it in stages over two growing seasons. This avoids shocking the plant and gives it time to push new shoots from older wood.

The best time for a hard reduction in Sydney is late winter, just before the spring growth spurt. The plant will respond with strong new shoots and recover its shape faster than if pruned in summer or autumn. Avoid cutting into bare wood in cold, exposed positions unless you are confident the variety will reshoot.

After a hard cutback, water deeply and apply a slow-release fertiliser. Keep an eye out for aphids on the tender new growth. With patience and the right aftercare, a Viburnum hedge can be brought back into a neat, dense screen in one or two seasons.