trimming viburnum shrubs - Knowledgebase Question

Clermont, Fl
Avatar for mkmalys
Question by mkmalys
April 17, 2010
The 8 yr. old viburnum shrubs are growing to the point of interfering with the sprinklers. Is there a method to trimming the branches so that they would grow upward rather than outward? Also the sprinklers have been moved forward once. Is this an option? It would be great not to have to trim shrubs often.How can we avoid so much work? Thanks, Mary

Answer from NGA
April 17, 2010
The best way to keep viburnums under control is to lightly prune them each spring. If you are just allowing your shrubs to grow without pruning they will overtake the area. You can prune your shrubs back now by about one third. Next spring you can prune them back by another one third. That should reduce their sizes enough to keep them from interfering with your sprinklers for a few years. There's really no way around it = pruning necessary unless you replace your viburnums with some low growing, compact shrubs. Best wishes with your landscape.

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