The doublefile viburnum (Viburnum plicatum tomentosum) is a big, 8- to 12-foot shrub hardy in Sunset’s Environment Zones 1 to 9, 14 to 24 and 31 to 43. This well-known decorative creates an incredible abundance of aromatic white flowers in summer. Birds gobble up in no time the berries that follow the flowers. The title âdoublefileâ refers to the shrubâs creation of intriguing layered branches. Provided it’s planted in an area where it’s space to stretch its branches that are magnificent, large pruning should not be required by a viburnum. Yearly trimming that is judicious, nevertheless, will help keep this shrub healthy and seeking its most appealing.
Thinning Young and Mature Shrubs
Perform th inning of a mature or youthful doublefile viburnum soon after after it’s done flowering. Pruning later in the period will disrupt the creation of the next seasonâs bloom.
Remove any diseased or broken branches .
The blades of your pruning shears for those who have employed them to reduce any branches that are diseased, to prevent contamination of wholesome development with rubbing alcohol.
Any branches that cross branches, reducing them back or rub on stem. Make cuts perpendicular to the stem.
Clip any ugly watersprouts developing around the plantâs trunk — these are the weak, slender suckers that frequently occur in the bottom of a shrub. They need to be removed since they sap the plantâs power.
Continue thinning out branches by about one third, together with the aim of checking and enhancing the shrubâs look. Cut branches straight back with their parent stem, producing cuts perpendicular.
Pruning Outdated or Overgrown Shrubs
Renewal pruning of an over-grown or aged doublefile viburnum in the spring.
Remove one third of the shrubâs oldest and thickest branches. Prune them to within several inches of the floor using a little pruning saw. This may encourage healthy new development to be sent out by the viburnum.
Remove any stems that are less pruning them back with their point of origin on the stem, producing cuts perpendicular.
Broadcast a general purpose fertilizer in accordance with package directions round the shrubâs drip zone. Water the shrub carefully.