Pruning Viburnum Shrubs: A Guide for Beginners
Viburnum shrubs are generally low-maintenance plants, but regular pruning can help them maintain their shape, beauty, and health. Here’s a beginner’s guide to pruning viburnum shrubs.
When to Prune Viburnum
Light pruning can be done throughout the year. However, major pruning should be done in late winter or early spring. Pruning can also be done after flowering but before seedpods form. Avoid pruning if frost is expected.
How Much to Prune Viburnum
Generally, viburnum shrubs should be trimmed back by about a third of their size each year. Most pruning is done to shape the shrub, but old or overgrown shrubs may need more drastic pruning to rejuvenate them.
How to Prune Viburnum
Young Shrubs:
- Pinch side shoots to maintain shape.
- Choose the most attractive, upright stem as the main stem.
Established Shrubs:
- Cut just above the nodes to encourage new shoot growth.
- Remove up to a third of the shrub to achieve natural-looking results.
Overgrown Shrubs:
- Cut close to the ground, leaving sturdy stems in place.
- Remove thin stems.
- Reshaping may take several years of pruning.
Specific Pruning Techniques:
- Shaping: Remove branches that cross or grow inward. Cut back branches to the desired shape.
- Rejuvenation: Remove old or overgrown branches to encourage new growth. Cut back to sturdy stems near the base of the shrub.
- Pinching: Remove side shoots to direct growth toward the main stem. This helps maintain a compact shape.
Additional Tips:
- Use sharp, clean pruning shears.
- Make clean cuts at a slight angle.
- Remove diseased or damaged branches.
- Fertilize shrubs after pruning to encourage healthy growth.
Conclusion:
Pruning viburnum shrubs is a simple task that can greatly improve their appearance and health. By following these guidelines, you can keep your viburnum shrubs looking their best for years to come.
