Attack overgrown plants before this year’s growth starts
If you have overgrown plants that are smothering the house or taking over the landscape, now is the time to strike. Hollies, yews, viburnums, forsythia, azaleas, rhododendrons and many more take well to hard pruning. Butterfly bush should be pruned very hard, to within inches of the ground, every year.
The only plants you can’t prune severely are conifers such as junipers, cedar, pine, spruce and fir. These species do not form adventitious buds, nor do they have latent buds capable of sprouting after all other buds have been removed.