The Difference Between Coppicing and Pollarding

A hazel stool cut almost to the ground throws up a dozen straight rods in a single season. The same hazel, cut two metres up a mossy old trunk, keeps its new growth well clear of cattle. It is the same tree doing the same thing — regrowing after being cut — but the height of the cut changes almost everything else: who can reach the regrowth, what the tree looks like in fifty years, and which wildlife moves in.

Two techniques, one principle

Coppicing and pollarding both exploit a habit shared by most broadleaved trees. Cut them back hard in winter and they will shoot again, either from the cut surface or from dormant buds just below it. The tree is not killed. It is reset.

The difference is simply where the cut is made. Coppice the tree and you cut near ground level, usually within 30cm or so of the soil. Pollard it and you cut high — traditionally above the browsing line of livestock and deer, so somewhere over two metres, on a trunk that is never felled.

Everything else follows from that one decision.

Coppicing: the cut at ground level

Coppicing works best on species that shoot vigorously from the base: hazel, ash, sweet chestnut, willow, field maple, lime, hornbeam and oak. A woodland managed this way is divided into coupes, or blocks, cut in sequence so that each year one block is felled and the rest grow on. A typical cycle runs somewhere between seven and twenty years depending on species and the size of rod wanted — hazel often at ten to fifteen years, sweet chestnut a little longer, willow and some riverside species as short as three to five.

The products shaped British landscapes. Hazel rods for hurdles, thatching spars and net hoops. Chestnut for fencing and cleft palings. Ash for tool handles and hurdles. Willow for baskets and, in wetter places, for withies. Cut a stool on that rhythm and it will keep producing for centuries; some stools in old woods are thought to predate the woods around them.

Left alone, coppice slowly grows out. The stools become crowded, light stops reaching the floor and the specialist plants and insects that depend on the cycle fade away. Coppicing is not a one-off job — it is a commitment.

Pollarding: the cut above the reach of animals

Pollarding solves a specific problem: how to harvest wood from a tree in a field, a hedgerow or a wood pasture where animals graze. Regrowth at ground level would be browsed to nothing within a season. Raised above the animals' reach, it survives.

Willow, lime, oak, ash, hornbeam, beech, field maple, sycamore and plane all respond well. In grazed wood pasture you will often see old pollards standing in open ground, their trunks stout and hollow, their crowns a mass of knuckled branch ends where generation after generation of cuts has swollen the wood.

Town trees are pollarded for a different reason: to keep a large species at a manageable size near buildings, wires and roads. That is a legitimate use, but the cut is often harder and more frequent than a traditional rural cycle, and the tree's response is correspondingly stressed.

Why the height changes the outcome

Three practical consequences are worth holding in mind.

• Protection. A coppiced stool is vulnerable. Deer, rabbits and livestock will graze fresh regrowth, which can kill a stool outright. Coppice needs fencing, guards or a deer-free site. A pollard's whole point is that it needs none of that.
• Form. A coppiced tree becomes a low, spreading stool — wide rather than tall. A pollard keeps a single trunk and develops a distinctive, often hollow head. The two trees age very differently, and old pollards are among the most valuable veteran trees we have.
• Longevity and risk. Cutting a tree that has not been coppiced or pollarded for decades is not the same as cutting one in a working rotation. Ancient pollards that have grown out can die back badly if suddenly re-cut. Take advice before tackling a veteran, and never fell a genuinely old tree just because it looks overgrown.

What it does for wildlife

This is where both techniques earn their keep, and it is not about any single species — it is about structure. A woodland cut on a rotation holds bare ground, dense young regrowth, thicket, and mature canopy all within a few hundred metres of each other. Very little else in the British countryside offers that spread of ages in one place.

Each stage suits something different. Freshly cut coupes let light reach the floor, waking up woodland flowers and the butterflies that follow them, including fritillaries and other species that need warm, open ground. Two or three years on, the regrowth is a dense tangle ideal for nesting warblers, nightingales and whitethroats. Mid-rotation hazel is prime dormouse country, the stems offering both food and aerial routes. Later, as the canopy closes, shade-loving plants and woodland birds return.

Old stools and hollow-headed pollards add another layer: dead and decaying wood. That rot supports fungi, beetles and other invertebrates, which in turn feed bats and birds, and the cavities themselves are used by owls, jackdaws and tits. Dead wood is habitat, not mess.

Timing, tools and technique

Get the basics right and a stool will reward you for decades.

1. Cut in the dormant season, roughly late autumn to late winter, outside the bird nesting season. Late winter suits most broadleaves; if you are cutting birch or maple, which bleed heavily as sap rises, earlier in the winter is kinder.
2. Cut cleanly and close. For coppice, make a slightly angled cut just above the previous cut, sloping so water runs off. For pollard, work close to the knuckle rather than leaving long stubs, which die back and let rot in.
3. Use the right tools. A bowsaw, pruning saw and loppers will handle most hazel and willow. Chainsaws are faster but need proper training, protective kit and a second person on site.
4. Deal with the brash. Leave some in loose piles as cover for amphibians, reptiles and small mammals. Burn or remove the rest if it is smothering regrowth.
5. Protect the regrowth from deer, rabbits and livestock for the first two or three years, which is when it is most vulnerable.

Before you make the first cut

Start small. Pick a handful of stools, cut them on a clear rotation and note what happens over the following two summers — you will learn more from watching one coupe than from any manual.

Check the paperwork first. In the UK, felling trees usually requires a licence unless an exemption applies, and separate rules cover Tree Preservation Orders, conservation areas and protected species. Your local council's tree officer, and the Forestry Commission, Scottish Forestry or Natural Resources Wales, can tell you what applies to your site. Nesting birds and bats are legally protected, so time your work around them and stop if you find evidence of either.

And if you inherit an old pollard or a long-neglected stool, do not assume it needs cutting. Sometimes the most valuable thing you can do for wildlife is leave the tree alone and enjoy it.

Photo: MabelAmber / Pixabay