Natural Cordage: How to Make Rope from Plant Fibres

What is natural cordage — and why make it?

Cordage is any flexible line made by twisting fibres together. Twisting is the trick: a single fibre is weak and short, but when two twisted bundles are wrapped around each other in the opposite direction, the tension in each strand locks the other in place. The result is a cord that is far stronger than its loose fibres and can be made as long as you like by adding more material.

People have made string this way for an extraordinarily long time — archaeologists have found evidence of twisted plant fibres tens of thousands of years old, and the famous Alpine "Iceman" carried items made from lime bast. For a modern bushcrafter, making cordage is less about survival than about understanding plants, seasons and materials. It teaches you to see fibre everywhere, and it gives you a backup when you run out of paracord.

Be realistic, though: hand-made cordage takes time — often half an hour or more per metre for a neat two-ply cord, not counting harvesting and drying. It is ideal for small jobs, crafts and practice, not for replacing the 20 metres of line you need for a tarp ridgeline.

The best natural fibres for cordage

In temperate forests five materials cover almost every need. They differ in when to harvest, how much work they take and how strong the final cord is.

Many other plants yield fibre — bramble, clematis, dogbane and milkweed in North America, yucca in drier regions, grasses and sedges almost everywhere — but the five above are widely available in European and North American woodland and illustrate all the main processing methods: crushing and stripping, retting, peeling and splitting. Whatever you use, check that the plant is not protected where you are.

Harvesting fibres ethically and legally

Every fibre comes from a living system, and in most countries the plants and trees belong to someone. Cutting bark from a living tree can kill it by interrupting the flow of sap; digging roots damages the tree and the forest floor; wetlands where cattail grows are often protected habitats. Responsible cordage-making starts before the knife comes out.

How to process each fibre

Stinging nettle — the best beginner fibre

Nettle (Urtica dioica) is widespread, grows back every year and produces fine, strong fibres. Choose the tallest, straightest stems — ideally 1–2 m long in late summer or autumn, when the fibres are mature. Dead, dry stalks standing in winter also work well, because weathering has already loosened the fibres from the woody core. Wear gloves until the stinging hairs have been removed.

Checkpoint — good nettle fibre: long ribbons that run the full length of the stem, bend without cracking and can be split lengthways into finer strips with a fingernail. If the ribbons break into short pieces, the stems were too young or you crushed too hard; if the core will not come away, try dead winter stalks, where weathering has done part of the work.

Lime (basswood) bast — the traditional rope fibre

The inner bark of lime or linden trees (Tilia, called basswood in North America) was one of the most important rope materials in prehistoric and medieval Europe. The bark peels easily in late spring and early summer, when the sap rises. Use coppiced shoots, prunings or trees that have been felled or blown down — with the owner's permission — never a standing living tree.

Peel long strips of bark, then ret them: submerge the strips in a pond, a slow stream or a tub of water for several weeks (often four to eight, depending on temperature). Bacteria break down the binding tissue, and the bast separates into thin, paper-like layers that can be pulled apart. Rinse, dry and store them in bundles. Lime bast makes strong, smooth cord and flat ribbons for tying and weaving.

Willow bark — fast and flexible

Young willow shoots (Salix) peel easily in spring and summer. Cut shoots from a willow you are allowed to prune — willow regrows vigorously — slit the bark lengthways and peel it off. Separate the inner bark from the brittle outer bark by bending and peeling. Willow bark is strongest used green, straight away, for quick lashings and baskets. Dried willow bark becomes brittle and should be soaked before use.

Cattail — easy, but weak

Cattail or reed mace (Typha) leaves are long, flat and easy to twist. Harvest mature leaves in late summer or autumn, dry them for a few days to prevent shrinking and loosening later, then dampen them just before twisting. The cord is relatively weak and not very durable, but it is quick to make and ideal for practising the reverse wrap, weaving mats or tying bundles. The seed heads provide excellent fluffy tinder. Only harvest from permitted areas — reed beds are often protected habitats.

Spruce roots — the lashing specialist

Spruce trees (Picea) have long, flexible roots running just below the surface, especially in soft, mossy ground. Traditional craftspeople in northern Europe and North America used split spruce roots to sew birch bark containers and lash frames. With permission, gently expose a root of pencil to thumb thickness, cut a length of a metre or more, and backfill the soil. Warm the root briefly over embers or in hot water to loosen the bark, pull it through a split stick to peel it, then split it in half from one end with your knife, steering the split by bending towards the thicker side. Use roots fresh or soak dried roots before use.

The reverse wrap twist: how to make two-ply cord

The reverse wrap is the universal hand method for making cordage. Each strand is twisted in one direction, and the two strands are wrapped around each other in the opposite direction. The opposing forces lock the cord together — that is why it does not unravel. Start with a bundle of prepared, slightly damp fibres about as thick as the finished cord you want.

In the drawings below, the two strands are tan and green so you can follow each one; in real cord they usually look the same, but each wrap still shows up as one diagonal band.

Splicing in new fibre and finishing the end

Fibres are short, so every cord longer than your bundle needs splices. A good splice is invisible: the strand keeps the same thickness, and the join is locked by the wraps on either side of it.

What good cord looks like

Thigh rolling — faster for long lengths

Once you have the reverse wrap in your fingers, try thigh rolling: hold the two strands apart on your thigh and roll them forward under your palm so that each strand twists; then let them go at once and they wrap around each other in the opposite direction. It takes practice to keep the tension even, but it produces cord much faster. Many people make the first few centimetres by the reverse wrap and then switch to rolling.

Practice drills

• Two-colour drill: practise with two visibly different fibres, for example cattail leaves for one strand and paler dry grass for the other, so you can follow each strand as in the drawings. Once the pattern is automatic, switch to one fibre.
• 10 cm check: twist 10 cm, stop and go through the checkpoints above. Untwist and repeat until three pieces in a row pass.
• Splice drill: on a practice cord, splice in new fibre every 10 cm on alternating strands until you can no longer find the joins by feel.

Three-ply cord and braids

For thicker rope, make three lengths of two-ply cord and twist them together in the opposite direction to their final ply. Alternatively, braid three strands for a flat, non-twisting line that is great for straps and handles. Both take much more material — roughly three to four times the length of fibre per length of finished cord.

How strong is natural cordage?

Strength depends on the fibre, the quality of processing, the evenness of the twist, the thickness and whether the cord is wet or dry. Hand-made cord varies from metre to metre, so exact figures are misleading. The comparison below is a qualitative guide; always test your own cord by loading it gradually, never with your body weight.

A realistic goal for a beginner: a neat, even 3–4 mm nettle or lime cord that can hold a pot on a tripod lashing, bind a bundle of firewood, or serve as the string of a bow drill for a few attempts. Natural bow drill strings do work, but they wear quickly from friction — have spare cord ready.

Paracord vs natural cordage

The sensible approach is both. Carry synthetic cord for your tarp, ridgeline and guylines — our bushcraft kit list suggests how much — and use natural cordage for crafts, practice and temporary structures that you will take apart and leave to decompose, such as a practice lean-to frame. Natural cord is also a good choice where synthetic scraps would otherwise be left behind.

Uses for natural cordage and troubleshooting

Once you can make a few metres, natural cordage finds many uses in camp: lashing a pot tripod or drying rack, binding the frame of a practice debris shelter, tying bundles of kindling, hanging a small food bag (see storing food at camp), making a lanyard for your knife, sewing a birch bark container, or knotting a small net. Combine it with your carving skills to make toggles, pegs and handles, and use the Knot Finder to choose the right knot for each job — grippy natural cord holds knots very well.