Why a Native Hedge Beats a Fence

A single native hedge does more for wildlife than almost anything else you can put in a garden. Planted along a boundary, it becomes a corridor that lets birds, insects and small mammals move safely between gardens, allotments and the wider countryside. It offers nesting sites, nectar in spring, berries in autumn, shelter from wind and rain, and a larder of caterpillars that young blue tits and robins depend on. A fence gives you privacy. A hedge gives you privacy and a whole ecosystem besides.

Native species are the key. Our insects evolved alongside hawthorn, blackthorn and hazel, so they recognise them as food. Exotic evergreens may look tidy, but a leylandii or laurel hedge supports a fraction of that life. You do not need a field — a 6-metre run along a fence line or the end of a garden will work beautifully.

Match the Species to Your Soil

Before you order anything, work out what your soil is actually like. Dig a spade-depth hole and squeeze a handful. If it clumps like plasticine, you have clay. If it trickles through your fingers, it is sandy. If it holds together loosely and darkens your palm, it is loam. Then check whether it stays waterlogged in winter and how much sun the hedge line gets.

Get this right and the hedge will look after itself. Get it wrong and you will spend three years watching things sulk.

• Heavy clay: hawthorn and blackthorn both thrive here, as does hornbeam. Hazel will cope if the ground drains reasonably.
• Sandy or light soil: hawthorn, hazel and wild cherry do well. Add plenty of organic matter before planting.
• Chalky soil: field maple, spindle, dog rose and buckthorn are all happy on lime.
• Damp or wet ground: alder buckthorn, guelder rose and willow take standing winter wet that would kill hazel.
• Shade: holly is the great standby, tolerating deep shade and providing dense, prickly nesting cover.

The Backbone Three: Hawthorn, Blackthorn and Hazel

Hawthorn is the classic hedgerow plant and the single best all-rounder for wildlife. Its May blossom feeds early bees and hoverflies, its dense thorny growth shelters nests, and its autumn haws are stripped by redwings, fieldfares and blackbirds. It will grow on almost any soil, including heavy clay, and it responds well to hard cutting.

Blackthorn flowers even earlier, often on bare branches in March, making it a lifeline for queen bumblebees emerging from hibernation. The sloes that follow in autumn are food for thrushes and small mammals. It suckers freely, so it makes an excellent thicket for nesting and for the brown hairstreak butterfly, which lays its eggs on young blackthorn stems. Plant it where you have room, as it spreads.

Hazel brings something different: catkins in February when little else offers pollen, and nuts in September that squirrels, wood mice and jays will race you for. Its soft leaves support a huge range of moths. Hazel prefers moist but free-draining loam and is best coppiced every few years to keep it bushy.

If you have space, mix in a few extras — field maple for autumn colour, guelder rose for berries and red foliage, dog rose for hips, or wild cherry for blossom. A mix of five or six species is far better for wildlife than a single-species run.

Planting Bare Roots in the Dormant Season

Bare-root plants are cheaper, establish faster and come with far less plastic than pot-grown stock. Order them for delivery between November and March, while the plants are dormant, and get them in the ground within a few days. Never plant into frozen or waterlogged soil — wait for a better week.

Prepare a strip about 60 cm wide along the hedge line and clear it of grass and perennial weeds. Grass is the main killer of young hedges. Space your plants 30–45 cm apart in a double, staggered row; that works out at roughly five plants per metre. A double row is denser, better for nesting and far more wind-resistant than a single line.

Soak the roots for an hour before planting, tease them out into the hole and firm the soil back around them. Fit a spiral guard around the base if rabbits, deer or pheasants are about, then mulch with well-rotted manure or compost, keeping it clear of the stems. Water well through the first two summers if the weather is dry.

Cutting for a Dense, Wildlife-Friendly Hedge

After planting, cut every plant back by about a third. It feels brutal, but it forces strong growth from the base rather than a few spindly stems. Then leave it for two or three years to get established before you start a proper regime.

From then on, cut in late winter — January or February — while the hedge is dormant and before the birds start nesting. It is an offence under the Wildlife and Countryside Act 1981 to damage a nest in use, so always check before you start and stop immediately if you find one. Avoid cutting between March and August entirely.

• Cut on a two to three year rotation, a section at a time, so there is always some fruit and cover left standing.
• Shape the hedge so it is wider at the bottom — an A-shape in cross-section lets light reach the base and stops it going bare and leggy.
• Leave a few taller stems to flower and fruit if you can. Haws and sloes only appear on wood that is at least a year old.

Give it five years and your hedge will be alive with sparrows, wrens, hedgehogs and moths. It is one of the most generous things you can plant — and it will still be working for wildlife long after you have hung up your secateurs.