As July settles in across New England, many homeowners begin to notice their shrubs looking a little overgrown after a season of rapid spring growth. Branches begin extending beyond their natural shape, hedges can start to look uneven, and flowering shrubs may lose the clean appearance they had earlier in the season. While trimming certainly improves curb appeal, it’s also an important part of keeping many shrubs healthy and vigorous for years to come.
According to horticulture experts at the University of New Hampshire Extension, many spring-flowering shrubs should be pruned shortly after they finish blooming. In New England, that makes late June through July an ideal time to prune many common landscape plants. Trimming during this period allows the shrub to recover during the remainder of the growing season while preparing healthy new growth for the following year.
Professional pruning is about much more than simply cutting branches back. Every shrub species grows differently, and understanding when and how to prune can help maintain its natural shape, encourage healthy development, and prevent unnecessary stress on the plant.
Why Timing Matters
Many popular landscape shrubs including: lilacs, forsythia, rhododendrons, azaleas, and weigela, flower on what’s known as old wood. This means the flower buds that produce next spring’s blooms begin forming shortly after the current season’s flowers fade.
The University of Massachusetts Amherst Extension explains that pruning these shrubs immediately after flowering gives them plenty of time to develop new growth while preserving next year’s flower buds. Waiting until late summer, fall, or winter often removes those developing buds, reducing or eliminating blooms the following spring.
Pruning at the proper time also gives cuts an opportunity to heal before colder weather arrives, helping shrubs recover more quickly and continue producing strong, healthy growth throughout the remainder of the season.
More Than Just a Neat Appearance
Although many homeowners think of shrub trimming as a cosmetic service, proper pruning provides several important health benefits. Research from both the UMass Amherst Extension and the University of Connecticut Extension shows that correct pruning helps improve the long-term health and structure of many landscape shrubs.
Proper shrub pruning can help:
- Remove dead, damaged, or diseased branches before problems spread.
- Increase airflow throughout the shrub, helping reduce moisture buildup that can contribute to fungal diseases.
- Allow more sunlight to reach the interior branches, encouraging healthy growth throughout the plant instead of only on the outer edges.
- Stimulate vigorous new shoots that keep shrubs fuller and healthier.
- Maintain a balanced, natural shape while preventing shrubs from becoming overcrowded or woody over time.
- Improve the overall appearance of your landscape while reducing the need for more aggressive pruning in the future.
Routine maintenance also makes shrubs easier to manage throughout the growing season and helps preserve the design and balance of your landscape beds.
Not Every Shrub Should Be Pruned in July
While July is an excellent time to prune many spring-flowering shrubs, it’s important to remember that every shrub species has its own ideal pruning schedule. Some shrubs bloom on new wood, meaning they produce flowers on the current season’s growth rather than last year’s branches.
Plants such as Rose of Sharon and many panicle hydrangeas are generally best pruned during late winter or early spring before new growth begins. Pruning these shrubs during the middle of summer can reduce flowering or interfere with their normal growth cycle.
Because every landscape contains a unique mix of shrubs and ornamental plants, professional guidance can help ensure each plant is pruned at the proper time using the appropriate techniques. Following species-specific pruning recommendations helps maximize flowering, encourage healthy growth, and keep your landscape looking its best throughout the year.
Let Corliss Landscape & Irrigation Help
If your shrubs are due for a mid-summer trim, July is an excellent time to schedule professional maintenance and keep your landscape healthy, attractive, and ready for the rest of the growing season. Reach out to Corliss Landscape & Irrigation for any pruning questions you may have.
Sources:
UMass Amherst Extension – Pruning Shrubs
University of Connecticut Extension – Pruning Early Flowering Shrubs
University of New Hampshire Extension – The Basics of Pruning Trees and Shrubs
