Sharpening and Storing Pruning Tools for Winter

Why Winter Is the Ideal Time to Tend Your Tools

Once the last leaves have dropped and the garden has settled into its slow, cold sleep, there is a quiet satisfaction in turning your attention to the tool shed. Dormant-season pruning is the busiest stretch of the year for secateurs and loppers, and there is nothing more frustrating than reaching for a favourite pair in January only to find them stiff, speckled with rust and chewing at the wood instead of slicing it cleanly.

An hour or two spent now, before the worst of the weather arrives, will pay you back all winter. Sharp blades make cleaner cuts, and clean cuts heal faster, which matters enormously when you are shaping fruit trees, roses and hedges in the cold. Dull blades crush and tear the cambium, leaving a wound that is slow to seal and vulnerable to disease right through the damp months.

Start With a Thorough Clean

Before you go anywhere near a sharpening stone, strip the tools back to bare metal. Sap, resin and dried-on plant tissue cling stubbornly to blades and can hide small nicks or patches of rust.

• Wipe blades and handles with a dry cloth to remove loose soil and debris.
• Use wire wool or a fine emery cloth to lift surface rust, working along the blade rather than across it.
• For sticky resin, a dab of white spirit or a little warm soapy water on a cloth will shift it; dry everything immediately afterwards.
• Scrub pivot points and the spring mechanism with an old toothbrush to dislodge grit trapped in the hinge.
• Inspect for chips, cracks and loose rivets, and set aside anything that needs a replacement part rather than a sharpen.

Work over a tray or a sheet of cardboard so you can see what comes off and catch any small springs or screws that make a bid for freedom.

Sharpening Secateurs and Loppers Properly

Bypass secateurs have one bevelled cutting blade and one flat, curved hook. Only the bevelled blade gets sharpened; running a file across the flat side will ruin the mating surface and leave you with a tool that simply pushes stems apart.

Clamp the tool firmly or hold it steady in a gloved hand. Use a fine diamond file or a small sharpening stone and follow the existing angle of the bevel, usually somewhere between 20 and 25 degrees. Push the file in one direction only, away from the cutting edge, in smooth strokes along the full length of the blade. Three or four passes on each side of a curved blade is plenty; you are refining an edge, not removing metal.

Loppers follow the same logic. On bypass loppers, sharpen the curved blade and leave the hook alone. On anvil loppers, sharpen only the blade — the flat anvil is deliberately soft and should never be filed. Finish by wiping the blade with a cloth to remove the fine metal dust, then test the edge on a piece of soft paper. A properly sharpened pair should slice cleanly through it, not snag.

Oiling Hinges, Springs and Pivots

Movement is where most winter stiffness comes from. A single drop of light machine oil applied to the pivot bolt, the spring and any sliding contact points will transform a reluctant pair of secateurs into something that feels new again.

• Open and close the tool several times after oiling to work the lubricant into the joint.
• Wipe away any excess, which otherwise collects grit and turns into a grinding paste.
• Coat the blades with a thin film of camellia oil or a similar non-drying protective oil to guard against damp air.
• Check spring tension; a slack spring lets blades drift apart and causes ragged cuts.

Do this in a dry, reasonably warm space, ideally before the coldest spell sets in. Oil applied in a freezing shed will not flow into the joint properly, so bring the tools indoors for an afternoon if you can.

Caring for Wooden and Composite Handles

Handles take more punishment than most gardeners realise. Wooden handles dry out, crack and splinter, particularly when a shed swings between damp and frosty. Once a year, rub them down lightly with fine abrasive paper and apply a coat of boiled linseed oil, wiping off the surplus after twenty minutes. Two thin coats are far better than one thick, sticky one.

Composite and plastic-coated handles simply need a wash in warm soapy water and a good dry. Never leave them standing in a bucket of water or resting on damp concrete. Check that the ferrule — the metal collar where handle meets blade — is tight, and tap it gently back into place if it has worked loose.

Storing Tools So Spring Finds Them Ready

Good storage is half the battle. British sheds are notoriously damp, and condensation forming on cold steel overnight is what causes most winter rust.

Hang tools on a pegboard or a simple rail rather than piling them in a box, so air can circulate freely. If you must store them in a container, line it with an old towel and tuck in a couple of silica gel sachets, replacing them every few weeks. A light smear of oil on the blades before they go away is the single most effective protection you can give them.

Keep a small notebook or a marked tag with each tool noting the last sharpening date, and set aside a midwinter check in January for anything you use heavily. With clean blades, oiled hinges and handles that have been fed and protected, your secateurs and loppers will be waiting patiently for that first bright, frosty morning of dormant-season pruning — and they will cut like a dream.