Guide
When to prune trees in Norfolk, and when to leave the birds alone
Most tree work can happen in any month. The exception is whenever a bird is sitting on a nest.
Independent enquiry service, not a tree surgery firm. Your enquiry goes to an established local tree surgery firm, who quotes and does the work direct.
Rules checked: October 2026.
People ask which month is best for pruning. The honest answer is that it depends on the tree and the job, but the one hard constraint is wildlife.
The nesting season
Under the Wildlife and Countryside Act 1981 it is an offence to intentionally damage or destroy a wild bird’s nest while it is in use or being built. There is no fixed legal date. In practice birds can be nesting from as early as February, and some carry on into late summer, so the period from roughly February to August is the one to treat with real caution. A decent firm looks before it cuts. If there is an active nest, the work waits.
Birds may be nesting Roughly February to August. Check before cutting hedges or trees.
Autumn and winter gales Roughly October to March. Storm call-outs, and exposed trees take a beating.
Deciduous trees bare Roughly November to March. Easiest time to see the structure of a tree.
Hedges
Hedges are the usual casualty, because people want them tidied in spring when they start growing. If you can, cut in autumn or winter. If it has to be done in the spring or summer, have someone check the hedge for nests first and be prepared to leave a section alone.
Trees
- Deciduous trees are easiest to read in winter when the leaves are off, so structural pruning of many species is commonly done between November and March.
- Some species, birch and walnut among them, bleed sap when cut in spring. It looks alarming and is generally not fatal, but most arborists prefer to avoid it.
- Fruit trees have their own timetable, and the right month depends on whether it is an apple, a plum or a cherry. Ask the firm.
- Bats are protected too, roosts included, in every month of the year. If a tree has cavities or splits that could hold one, tell the firm.
Gale season
The Wash does not make it easy. Autumn and winter gales are when exposed trees lose limbs and firms get swamped. If a tree looks weak, booking in a quiet spell beats hoping it will see out the winter. Ash with dieback, which is widespread in Norfolk, can be brittle and unpredictable at any time of year.
Check protection first
Whatever the month, a protected tree needs consent or notice before pruning. Start with the TPO and conservation area guide.