Planning a Natural Dye Workshop for Adults

Start with a realistic group size and timetable

Twelve to sixteen adults is the sweet spot for a natural dye workshop. Fewer and the room feels flat; more and you spend the day queuing at the dye pot instead of teaching. A full day runs best from 10am to 4pm, with a short morning break and a proper lunch. Half-days work, but you will have to choose between mordanting and dyeing, and participants leave with less. I would rather run one generous day than two rushed ones.

Be clear in your booking notes about what people take home. Something like: four dyed and labelled samples, a shibori-bound scarf, and a printed recipe sheet. Having a tangible outcome in mind shapes every decision about timing that follows.

Gather fibres, mordants and dye materials in advance

Assume nothing about what your venue will provide. Bring everything, plus spares of the cheap things. For a group of sixteen, this is a sensible starting list:

• Fibre: 60cm squares of pre-scoured cotton or linen, plus merino or silk scarves. Prepare at least two pieces per person so they can experiment.
• Mordants: alum sulphate at 10 per cent weight of fibre for protein fibres; for cellulose, a tannin bath first (gallnut or sumac), then alum at 15 per cent. Keep iron water in a marked jar and remind people that a little goes a very long way.
• Dye stuffs: madder root, onion skins, weld, logwood, cochineal, plus a jar of avocado stones if you want a gentle introduction. Aim for three dyes in a full day, not six.
• Pots and kit: one stainless steel pot per dye, dedicated to dyeing only. Long tongs, slotted spoons, heatproof jugs, pH strips or a small bottle of clear vinegar and one of soda ash.
• Safety: aprons, nitrile gloves, eye protection, and a designated no-food, no-drink bench.

Weigh everything into labelled bags the night before. Fumbling for labels while sixteen people wait is the fastest way to lose a room.

Structure the day so hands are never idle

Waiting is the enemy of a good workshop. Natural dyeing involves genuine waiting, so fill it deliberately. A running order that works well looks like this:

• 10.00: Welcome, safety, and a five-minute explanation of mordanting. Give everyone a pre-mordanted piece to handle while you talk.
• 10.30: Shibori demonstration, then straight into binding. This is the hands-on anchor of the morning.
• 11.30: Simmer the dye pots while people finish binding. Walk between tables, not from the front.
• 12.15: First samples into the pots. Lunch while they steep.
• 1.30: Rinse, unwrap, and the reveal. This is the emotional high point of the day, so protect the time.
• 2.15: Second dye or an overdye with iron or an indigo dip.
• 3.15: Washing, labelling, drying, and a short talk about continuing at home.

Build in twenty minutes of slack. Something always takes longer than you think, usually rinsing.

Demonstrate shibori in small, repeatable steps

Shibori fails when people bind too loosely or wrap too little fabric. Show three techniques and no more: itajime (folded and clamped between squares of wood or plastic), ne-maki (binding objects like marbles or pebbles into the cloth), and arashi (wrapping diagonally around a pole and compressing tightly with string). Each takes under ten minutes to demonstrate.

Do the whole thing once at normal speed, then repeat it slowly while narrating what your hands are doing. Then ask everyone to bind a small sample square before touching their scarf. The sample is the rehearsal; the scarf is the performance. Have plenty of pre-cut string in metre lengths and a box of pebbles and flat wooden shapes. In a cold dye bath, cotton resists less crisply than silk, so tell people to bind tightly and pack folds firmly.

Plan your drying space before the first rinse

Wet textiles are heavy and the drying area is the part of the workshop people forget. You need far more space than seems reasonable. A clothes airer holds perhaps a dozen scarves; sixteen people will produce double that once samples and overdyes are counted.

Lay in drying racks, a washing line with pegs, or clean tarpaulin on the floor if the weather is fine. Label each piece with a luggage tag or masking tape and a name as it comes out of the rinse, so nothing is mixed up. Have newspaper or old towels under the racks, because freshly dyed cloth drips for hours. A gentle breeze and shade beat direct sun, which can shift delicate colours such as cochineal and logwood.

Send everyone home ready to carry on

Confidence comes from knowing the next step, so finish with a short, practical handover. Give each person a one-page sheet with their mordant quantities, dye percentages, and the pH they used. Show them the cheapest place to start at home: a dedicated stainless pan from a charity shop, a jar of alum, and onion skins saved over a fortnight.

Warn them that cellulose fibres need the tannin step and that iron can make a dye bath go muddy in seconds, so use drops, not spoonfuls. Encourage them to keep a notebook with dates, weights and colours, because natural dyeing rewards record-keeping. If they leave with dry samples, clear notes and one technique they can repeat unaided, you have done your job well.