Why Native Hedges Matter for Wildlife

A mixed native hedge is one of the hardest-working features you can add to a British garden. Unlike a single-species conifer screen, a hedge of native shrubs offers flowers for pollinators in spring, berries and hips for birds in autumn, dense twiggy growth for nesting, and a sheltered corridor that lets small mammals move safely between gardens. In many ways, a good hedge replaces the hedgerows that have been lost from our wider countryside, and it does so in a space as narrow as a metre.

The key word is mixed. A hedge of five or six species will feed and shelter far more creatures than a monoculture, and it will look interesting across all four seasons. Aim for a planting ratio of roughly 60 per cent hawthorn and blackthorn, with the remainder made up of other natives.

The Backbone Species: Hawthorn and Blackthorn

If you plant nothing else, plant these two. Hawthorn (Crataegus monogyna) is the classic British hedgerow shrub. Its May blossom feeds early bees and hoverflies, its deep red haws are eaten by redwings, fieldfares and thrushes through winter, and its thorny tangle is a favourite nesting site for dunnocks and blackbirds. It also supports over 300 species of insect, which in turn feed hungry chicks.

Blackthorn (Prunus spinosa) flowers earlier, often before the leaves appear, providing a vital early nectar source on cold March days. Its sloes are less popular with birds than haws because they are so astringent, but they soften after the first hard frosts and are then taken by mistle thrushes and small mammals.

• Hawthorn — May flowers, autumn haws, superb nesting cover
• Blackthorn — early blossom, sloes, suckering habit that thickens the base

Berrying Shrubs for Autumn and Winter Food

Birds need calorie-rich berries to survive frosty nights, and nothing delivers quite like the following.

• Holly — Evergreen, dense, and the female plants produce scarlet berries that blackbirds and thrushes strip by late winter. Plant one male for every three or four females to guarantee berries.
• Guelder rose — Creamy white lace-cap flowers in June, translucent red berries in autumn, and brilliant crimson autumn foliage.
• Rowan — Fast-growing and tolerant of most soils, with orange-red berries that are gone within days once the winter migrants arrive.
• Dog rose — Scrambling and thorny, with pale pink summer flowers, open hips for the birds, and leaves that feed the larvae of several moth species.

These shrubs are also excellent for insects. Ivy, often dismissed as a nuisance, deserves a place at the base or on a boundary wall: its late flowers are one of the best autumn nectar sources for bees, wasps and hoverflies, and its berries ripen in spring when little else is available.

Plants for Insects, Shelter and Year-Round Structure

A hedge should not be bare in January. Mix in evergreens and long-flowering shrubs to give cover when it is most needed.

• Field maple — A native tree that clips beautifully, with winged seeds and golden autumn colour.
• Hazel — Catkins in late winter, nuts in autumn for squirrels, dormice and jays, and soft leaves for moths.
• Wild privet — Semi-evergreen, with small white flowers in summer that are loved by moths and bees.
• Yew — Deep, dry evergreen cover that birds use as a roost. Slow-growing, but long-lived and happy in shade.
• Buckthorn — The larval food plant of the brimstone butterfly, and a good berrying shrub for thicker hedges.

Include a few climbers such as honeysuckle or wild clematis at intervals. Honeysuckle's evening scent attracts moths, and its tangled stems are a favourite nesting spot for long-tailed tits.

How to Plant for the Best Results

Plant bare-root whips between November and March, ideally in a double row about 30cm apart, staggered, with rows 40cm apart. This creates a thick, stocky hedge rather than a thin line of stems. Prepare the ground by clearing perennial weeds and digging in plenty of well-rotted organic matter.

Cut each whip back to about 15–20cm after planting to encourage bushy growth from the base. Water well in the first two summers, and mulch with bark chippings to keep moisture in and weeds down.

Avoid trimming the top for the first two or three years; let the hedge reach its intended height first. After that, cut only once a year, in late winter, so that birds can nest and feed on autumn berries undisturbed. Never trim between March and August. Where you can, angle the sides slightly so the base is wider than the top — this lets light reach the bottom and keeps the hedge dense all the way down.

Wildlife-Friendly Hedge Care

Leave a rough grass margin of at least 30cm on the garden side of the hedge, and allow some leaf litter to gather underneath. This is where hedgehogs, shrews and beetles will forage and hibernate. If you have room, let a few stems of cow parsley, foxglove or red campion self-seed along the base for extra nectar.

Once established, a native mixed hedge needs little more than an annual cut. In return you will get blossom, berries, birdsong and a living boundary that changes with every season — a small piece of British countryside, right at the edge of your garden.