Planting a Native Hedge for Birds and Insects

A native hedge is one of the most generous things you can plant in a British garden. It gives birds somewhere to nest, insects a place to feed and shelter, and you a living boundary that changes with every season. If you plant a mix of hawthorn, blackthorn and hazel, you are creating a larder, a nursery and a wildlife corridor all at once. The good news is that it need not be a big project. A run of just three or four metres can make a real difference.

Why a native hedge beats a fence

A fence divides. A hedge divides and gives. It offers far more than a boundary, and it improves as it grows.

• Nesting cover: thorny, dense growth protects eggs and chicks from cats, magpies and the weather.
• Food: berries, nuts, nectar, pollen and leaves for caterpillars, which in turn feed birds.
• Shelter: insects and small mammals use the base and leaf litter; birds roost in the branches on cold nights.
• Corridors: hedges connect gardens, allotments and wilder spaces, letting wildlife move safely.
• Climate: a hedge slows wind, holds moisture and stores carbon in its woody growth.

It also costs less to maintain than a fence over time, and it will outlive most timber panels.

Choosing your mix: hawthorn, blackthorn and hazel

These three native species are the backbone of a wildlife hedge. They flower and fruit at different times, so something is always offering food.

• Hawthorn (Crataegus monogyna): the classic hedgerow plant. White May blossom feeds bees and hoverflies, red haws feed thrushes and redwings in autumn, and its thorny branches are ideal for nesting. It supports a huge number of moth caterpillars.
• Blackthorn (Prunus spinosa): the first blossom of the year, often in March before the leaves. Early nectar is vital for emerging bees. Sloes feed birds in late autumn, and its suckering habit makes a dense, impenetrable hedge.
• Hazel (Corylus avellana): yellow catkins from January release pollen for early insects. Nuts in autumn feed mice, squirrels and nuthatches, and the leaves support many moths.

If you have room, add a few dog rose, field maple, guelder rose, holly or crab apple. Keep the three main species as the majority, though, so the hedge keeps its structure.

Planting bare-root whips: spacing and soil

Bare-root whips are cheap, lightweight and establish quickly. Plant them between November and March, when the ground is not frozen or waterlogged.

• Prepare the ground: clear a strip about 60cm wide of grass and weeds. Fork in well-rotted compost or manure. Do not add fertiliser, which encourages soft growth.
• Spacing: for a thick wildlife hedge, plant a double staggered row. Put plants 30–40cm apart, with 40cm between the rows. That is roughly five whips per metre.
• Planting depth: set each whip at the same depth it was growing in the nursery. Firm the soil around the roots, then water well.
• Mulch: spread 5–7cm of bark or garden compost along the row, keeping it clear of the stems.
• Protect: use rabbit guards and canes. If deer visit, use taller guards. Water deeply in dry spells for the first two summers.

Caring for the hedge in its first years

Young hedges need a little help to become dense and long-lived. The aim is a thick base, not a tall, thin screen.

• After planting, cut the whips back by about one third. This feels drastic but encourages bushy growth from the base.
• In the first two years, trim the sides lightly in late winter. Leave the top alone until the hedge reaches the height you want.
• Keep weeds and grass away from the base. Hand-weed or top up the mulch each spring.
• From year three, trim every second or third year in late winter, ideally February, before birds begin nesting.
• Never cut between March and August. If you must tidy, wait until September, but leave the berries for winter birds.
• Cut in rotation: trim one section each year, leaving others to flower and fruit. This keeps a constant supply of food and cover.

For a traditional look, you can lay the hedge instead of trimming it. Laying thickens the base and extends the hedge's life, but it is a skilled job. If you are unsure, start with simple rotational trimming.

A year of wildlife in your hedge

Once established, your hedge becomes a seasonal larder and nursery.

• Spring: blackthorn blossom feeds early bees, then hawthorn flowers in May. Birds such as robins, dunnocks and blackbirds nest deep in the thorns.
• Summer: dense leaves shelter caterpillars, aphids and other insects. Blue tits, wrens and sparrows hunt among the branches. The hedge also gives shade and cover for frogs and hedgehogs at ground level.
• Autumn: haws and sloes ripen, and hazelnuts form. Thrushes, redwings, fieldfares, wood mice and squirrels all feed. Leave the berries on the hedge rather than cutting them off.
• Winter: berries are a lifeline in cold snaps. Hazel catkins open from January, offering pollen on mild days. The dense twigs shelter roosting birds and overwintering insects.

Plant a native hedge and you are not just filling a boundary. You are making a small, living piece of British countryside that will feed and shelter wildlife for decades.