Why a Mixed Hedgerow Earns Its Keep

A hedgerow is one of the hardest-working things you can plant on a smallholding. It slows the wind across your paddocks, gives stock somewhere to tuck themselves away from driving rain, shelters your vegetable beds, and turns a bare boundary into a corridor for birds, bats and pollinators. Unlike a fence, it improves with age and costs nothing to replace.

The trick is to plant a mixture rather than a single species. A hedge of nothing but hawthorn will do the windbreak job perfectly well, but it will fruit all at once, offer nesting cover of one type, and leave your wildlife hungry from September onwards. A mix of natives with staggered flowering and fruiting times gives you a hedge that is useful twelve months of the year.

Choosing Your Species

Stick to native species grown from British seed where you can. They are adapted to our soils, they support our insects, and bare-root whips are cheap enough to plant in quantity. For a general-purpose farm hedge, aim for roughly 60 per cent of one sturdy spine species and the rest as a supporting cast.

• Hawthorn — the backbone of almost every traditional hedge. Tough, thorny, quick to thicken, and smothered in May blossom followed by haws that blackbirds and fieldfares strip by Christmas.
• Blackthorn — suckers readily, so it fills gaps and makes an impenetrable thicket. White flowers arrive before the leaves, and the sloes are there for gin, jam or the birds.
• Hazel — lovely for coppicing, good golden autumn colour, and the nuts feed dormice, jays and squirrels. Hazel also tolerates shade better than most.
• Field maple — a small native tree that adds height and structure, with winged seeds and glowing autumn foliage.
• Dog rose and guelder rose — scrambling, flowering, hips and berries. Excellent for nesting birds, and they soften the look of a newly planted line.
• Holly and wild privet — evergreen or semi-evergreen, so they hold cover through winter when everything else is bare.
• Crab apple and spindle — smaller additions, but the fruit and the vivid autumn colour are worth the space.

If your ground is heavy clay or prone to sitting wet, add a few willows or alder. On chalk or thin, dry soils, hawthorn, blackthorn and field maple will cope where others sulk.

Planning the Layout

Decide what the hedge is for before you order plants. A windbreak should run at right angles to the prevailing wind — for most of the UK that means a line running north to south, sheltering the ground to the east. A porous hedge that filters the wind is far better than a solid wall, which simply pushes gusts over the top and drops them in a turbulent swirl on the far side.

Leave at least a metre of clear ground either side so you can get a strimmer or mower along the base without scalping the stems. If you are planting along a stock fence, set the hedge back far enough that animals cannot reach through and browse the new growth.

For a stock-proof, wildlife-friendly hedge, plant a double staggered row. Set the rows about 40cm apart, with plants roughly 45cm apart within each row, offset so the second row sits in the gaps of the first. That works out at around five to seven whips per metre. If you want a taller, more tree-like hedge, add a standard tree such as oak or field maple every fifteen to twenty metres.

Planting Day

Bare-root whips are lifted and sold between November and March, while the plants are dormant. That is by far the cheapest and most reliable way to plant a hedge, and it means you can put a long run in during a single weekend.

Prepare the ground by clearing a strip about a metre wide of grass and weeds. Grass is the single biggest killer of young hedges — it competes for water and nutrients right where the roots are trying to establish. Fork over the top few inches, working in some well-rotted manure or compost if you have it.

Plant into a slit with a spade, firming each whip in well so the roots are in contact with soil and the old soil mark sits at ground level. Water them in if the ground is dry. Then mulch the whole strip with bark chip, straw or compost to hold moisture and suppress weeds, and fit a spiral guard to each whip to protect against rabbits and deer. On exposed sites, a cane beside each plant helps you find them again in spring.

Cut the whips back hard after planting — down to 15–30cm for most species. It feels brutal, but it forces them to branch from the base rather than run up into a spindly stick, and you will get a dense hedge two years sooner.

The First Few Years

Keep the base clear for the first two or three summers. Hand-weed or mulch rather than strim close to the stems. Water deeply in dry spells during the first year, particularly on light soils.

Do not trim the top for the first two or three years — let the hedge gain height. Trim the sides lightly instead, aiming for a slightly tapered profile that is wider at the base than the top. That shape lets light reach the lower branches and keeps the bottom thick, which is exactly where most birds nest.

Once established, cut in rotation rather than all at once. Trimming a third of the length each winter leaves fruit and cover on the rest, and it avoids the hedge going leggy. Always cut outside the bird nesting season, so between September and February, and ideally leave some sections to grow on for a year or two.

What You Get Back

Within three or four years you will notice the difference. The wind drops across the sheltered ground, soil stays warmer, and stock graze closer to the hedge line. Then the wildlife arrives: yellowhammers and whitethroats nesting in the thorns, bees working the May blossom, and a autumn larder of haws, sloes, hips and nuts that keeps birds on your land through the hardest weeks of the year. Plant it once, and it keeps paying you back for decades.