You can prune doublefile viburnum, but there are some specific guidelines you should follow to ensure the health and aesthetic appeal of the plant. Doublefile viburnum (Viburnum plicatum var. tomentosum) is a beautiful shrub known for its horizontal branching structure and showy, lacecap-like flowers.
When it comes to pruning doublefile viburnum, it’s important to be mindful of how much you prune and the timing of the pruning. This species is quite sensitive to heavy pruning, so it’s best to avoid any drastic or hard pruning. Instead, I recommend pruning no more than 15% to 20% of its live branches at a time. This light pruning will help maintain the plant’s natural shape and prevent excessive growth of water sprouts and suckers.
Water sprouts are vigorous, upright shoots that can emerge from the base or along the branches of the plant. They often grow rapidly and can create a crowded and untidy appearance if left unchecked. Suckers, on the other hand, are shoots that arise from the root system and can sap nutrients from the main plant if allowed to grow.
To avoid the overproduction of water sprouts and suckers, it’s important to prune doublefile viburnum properly. Start by removing any dead, diseased, or damaged branches. These can be pruned back to the point of healthy tissue or all the way to the base if necessary. Removing these branches will improve the overall health and appearance of the plant.
Next, selectively prune any crossing or rubbing branches. These branches can create wounds and provide an entry point for pests and diseases. By removing these branches, you can improve air circulation within the plant and reduce the risk of damage.
When pruning, make sure to use clean and sharp pruning tools to make clean cuts. Avoid tearing or ripping the branches, as this can lead to unnecessary damage and increase the risk of disease.
In terms of timing, the best time to prune doublefile viburnum is in late winter or early spring, before new growth begins. This dormant period allows the plant to recover and heal from the pruning cuts before it starts putting energy into new growth. However, if necessary, light pruning can be done throughout the year to remove any immediate concerns or maintain the desired shape of the plant.
It’s worth noting that doublefile viburnum is a relatively slow-growing shrub, so it’s important to be patient and avoid excessive pruning. Over-pruning can result in a loss of the plant’s natural form and may take several years for it to recover.
While you can prune doublefile viburnum, it’s crucial to do so with care and moderation. Stick to light pruning, removing no more than 15% to 20% of live branches at a time, to avoid the excessive production of water sprouts and suckers. By following these guidelines and pruning at the right time, you can help maintain the health and beauty of your doublefile viburnum shrub.
