Gardening expert Monty Don has revealed the precise time homeowners should prune their hedges, explaining why it is crucial to hold off until a particular time of year. The BBC Gardeners' World presenter emphasized that trimming hedges too early can endanger nesting birds, which is both harmful and illegal.
Why Late Summer is the Safest Time
Monty Don stated that spring, especially April, "is the very worst time to cut hedges" because young birds remain in their nests. He explained that the "best times for birds are winter months and late summer when all are fully fledged and left nests." During summer, this typically means late August. Many British birds, including robins, house sparrows, blackbirds, and wrens, build nests in hedges throughout summer, and early trimming could jeopardize their offspring.
Legal Protections for Nesting Birds
The Royal Horticultural Society (RHS) highlights that disturbing nesting birds is against the law. It states: "Before undertaking work on hedges, check that there are no nesting birds in the hedge, as it is an offence under the Wildlife & Countryside Act 1981 to damage or destroy the nest of any wild bird while it is in use or being built." The RHS acknowledges the need for hedge maintenance but advises caution to protect wildlife.
Monty Don's Gardening Advice and Career
Monty Don, a much-loved horticulturist, broadcaster, and author, has become a trusted resource for gardeners. He frequently shares tips on social media, offering glimpses into his own gardening tasks. Regarding hedge trimming, he urges patience to safeguard birds. Monty began his television career in 1989 with a gardening slot on This Morning and became the main presenter of Gardeners' World in 2003. He has authored over 25 books, including the 2026 series Monty Don's Rhineland Gardens.
Practical Tips for Hedge Trimming
The RHS advises that hand-held hedge shears are suitable for smaller hedges, while powered trimmers—corded electric, battery-powered, or petrol—are better for large hedges. Weight is an important factor when choosing a trimmer. Regular trimming keeps hedges dense, neat, and within bounds, but timing is critical to avoid harming wildlife. By waiting until late summer or winter, gardeners can enjoy well-maintained hedges while protecting bird populations.
