When is the best time to prune a shrub for optimal results?

Pruning a shrub in late winter or early spring is optimal for several reasons. This timing is often just before new growth begins, which allows the plant to heal and close any cuts before it enters its active growing season. This approach is particularly effective for many deciduous shrubs, as it helps to encourage new growth and flowering.

During late winter or early spring, the plant is typically in a dormant state, which minimizes stress and allows for a more vigorous response to pruning. It also gives gardeners the opportunity to shape the plant while it is easy to see the structure without foliage, ensuring better outcomes.

Pruning in the fall can lead to new growth that may be damaged by cold weather. Summer pruning may stress the plant during its active growth phase and potentially disrupt the plant's ability to photosynthesize adequately, while pruning any time throughout the year can lead to unnecessary stress and hinder overall plant health and growth.