Repairing Worn Knitwear with Visible Mending

There's a particular satisfaction in pulling a well-loved jumper out of the drawer and deciding, deliberately, to make its history visible. A darned elbow or a scatter of mended moth holes isn't a failure of care — it's proof the garment earned its place. Visible mending takes the practical repair skills our grandmothers used and treats them as decoration, and it's one of the most forgiving crafts a UK maker can pick up.

Start with the right tools

A darning mushroom is the piece of kit that makes the difference between a repair that holds and one that pulls out of shape. A wooden dome on a short handle holds the fabric taut over a smooth curve, so your needle doesn't catch the back of the garment and your tension stays even. Look for one with a polished surface and a dome roughly the size of your palm — anything much larger is awkward inside a sleeve. Vintage ones turn up in charity shops for a few pounds, and there are small loom-style versions with a set of hooks that speed up straight darning considerably.

Alongside the mushroom you'll want blunt-tipped tapestry needles in sizes 13 to 18 for wool, a sharp embroidery needle if you're working over a woven patch, small sharp scissors, and a fine crochet hook for rescuing dropped stitches. For yarn, leftover fingering-weight wool, sock yarn or crewel wool all work well. Choose something with a little grip: pure wool or wool-heavy blends gradually felt into the knitting and hold far better than slippy superwash or acrylic.

Read the damage before you thread a needle

Not every hole wants the same treatment. Small round moth holes with sound knitting around them darn up beautifully. Thin, felted patches with no actual hole respond best to duplicate stitch, which reinforces the existing structure. Blown elbows and cuffs, where the fabric has simply gone, need a patch behind them or a proper woven darn.

Before you begin, rule out live moth activity. If you suspect larvae, wash the garment according to its fibre, then seal it in a bag and freeze it for at least seventy-two hours — a week is safer. Darning over active moths simply means you'll be back in a fortnight.

Setting up on the mushroom

• Turn the garment inside out and slide the mushroom underneath so the damaged area sits on the crown.
• Ease the knitting flat rather than stretching it, nudging the rows back into line with a needle tip.
• Thread a length of yarn no longer than your forearm, about 50cm. Longer lengths tangle and abrade as they pass through the fabric.
• Anchor without a knot: take three or four tiny stitches into the solid knitting at the edge of the hole, catching only the surface layer, not the back of the garment.

Three stitches worth knowing

Running stitch darning. Work a series of vertical stitches across the hole, spaced three to four millimetres apart, extending at least a centimetre into solid knitting at each end. Then turn and weave horizontally, passing over and under the vertical threads like a tiny woven patch. Alternate the over-and-under on each row so the threads interlock. Resist the urge to pull tight — the darn should sit level with the knitting, not pucker it.

Duplicate stitch, or Swiss darning. This traces the path of the original yarn, following the V of each knitted stitch to cover thin spots and small holes where the structure survives. It's the ideal technique for reinforcing heels, elbows and cuffs before they fail, and it can be nearly invisible when you match the yarn closely.

Blanket stitch edging. For a hole with ragged edges, work blanket stitch around the rim first to stop it fraying further and to give your darn something to grip. This is also where a contrasting colour starts to look deliberate rather than accidental.

Colour, yarn and texture choices

This is the fun part, and the rules are really just suggestions.

• Choose two or three colours that relate to the garment — mustard and rust on navy, a soft pink on grey.
• Match the weight of the original yarn or go slightly finer; anything bulky distorts the knitting around it.
• Try stripes, working each woven row in a different colour for a woven-ribbon effect.
• Add texture with a few rows of chain stitch, French knots or a small woven cross over the centre of the hole.
• Place mends in odd, cheerful spots: a row of dots running down a sleeve, or a patch of colour at the cuff.

Keep a small jar of leftover yarns as a dedicated mending palette so you can pick from it rather than hunting through a stash box every time.

Finishing and looking after your mend

Run the yarn tail into the back of the knitting, following the line of a row for two to three centimetres, then snip it off. Never knot the ends — knots work loose and create lumps. If the garment is wool, press lightly from the wrong side under a damp cloth.

• Wash inside out at a low temperature, or hand wash if the fibre is delicate.
• Dry flat and out of direct sunlight to protect both the knitting and your new work.
• Check cuffs, elbows, underarms and hems once a season, and deal with small holes early while they're a ten-minute job.
• Keep your mushroom, needles and palette jar together so mending is easy to start on a whim.

Every darn you work adds a layer of your own making to a garment someone else knitted or a machine produced decades ago. Done well, it doesn't hide the wear — it celebrates it, and it turns a jumper you were fond of into one you're genuinely proud of.