Classes and Courses

Experience the magic and satisfaction of learning to make your own beautiful and healthy textiles and papers using natural products, local plant materials, sustainable print processes and recycled cloth.

2018 courses are booking now! Please see each one for the booking details. I can also be booked for your own bespoke day – see here for details


St Fagans National Museum of History

Saturday 23rd June 10.30 – 4pm

Dye and print an organic scarf with local plants

Relax and create whilst learning about locally gathered plant dyes and how they blend into the materials that you’ll use. You’ll create your own beautiful soft and warming silk scarf, patterned and dyed with plants known for their healing and medicinal properties, such as turmeric, madder, rose, avocado, walnut, St. Johns wort and agrimony.
18+ Booking essential – HERE


Green Squirrel evening workshop, Little Man Coffee

Wednesday 11th July 6.30 – 9pm

Natural Dyeing and Printing for textiles

Give clothing and other textiles a new lease of life with this introduction to natural dyes and patterning techniques. I’ll introduce some of the beautiful effects that can be achieved using locally foraged plants and even food scraps! You’ll start by learning a variety of ‘shibori’ patterning techniques before dyeing your own item to take away with you. I’ll provide recycled fabric sample pieces but you can also bring a small item of your own – silk/cotton/linen/wool can all be dyed but keep it small please as we have to fit a lot in to a small time 🙂  Things like tray cloths, doilies, t-shits and vests, shorts, scarves, socks are all good.

Green Squirrel keep ticket prices as low as possible so that their workshops are affordable and accessible. They are able to offer a limited amount of free tickets to those on low incomes so please get in touch if you wish to attend a workshop but feel that the cost is prohibitive. Contact


Oriel Myrddin, Carmarthen

Saturday 28th July 2018  11 – 3pm

Summer ink workshop I’ll give an introduction to botanical ink making, as well as explaining the fascinating hand techniques and natural materials involved in my work. Then you get to play and draw with your own plant inks made from plants, flower, berries and tools made from gathered materials. You’ll make beautiful marks and patterns onto cloth and paper, which will go into your own little natures ink sample book.

16+ booking essential – call 01267 222775


Swansea Festival of Stitch, Swansea Museum, Swansea

Monday 13th August 2018  10 – 4pm


You’ll make patterned, printed, dyed fabrics and papers, combining ghostly photographic cyanotype blueprinted images with beautiful natural blue Indigo dye. You’ll use the timeless Arashi shibori process to create amazing wave like patterns, along with other simple folding and tying techniques.

All items for the dyeing and making cyanotypes will be provided, such as paper and fabric, photos, stencils, shells, feathers, seaweeds etc, but you can bring your own images & materials to use in addition or if you have specific ideas you want to follow. You’ll make a set of samples for reference or to use in future projects.

16+ – Booking essential – HERE


Make it in Wales at Ystrad Farm, Brechfa, Carmarthenshire


Retreat to the Brechfa mountains and spend three full days learning techniques in indigo dyeing and Shibori and enjoy great hospitality from Juliet of Ystrad Organics. All materials required are included – you’ll get a metre each of Thai silk, cotton and wool (or linen fabric depending upon availability at the time of the event). Cambrian Wool will be available to purchase on the day. We encourage you to bring other fabrics than those supplied as you can never have too much! A spacious work area, individual dye bath & information pack is allocated to each student and there are plenty of tools to go around, but it’s worth bringing your own basic art and stitch kit – scissors, knife, threads, pins, tape etc.

A plentiful supply of tea, proper coffee and homemade afternoon cake is provided as well as fab lunches. Ystrad is a working farm so things can get a bit muddy and messy. Please wear appropriate footwear and bring waterproof clothing.

I’ll introduce you to indigo dye; showing samples, history and inspiration. We’ll make the indigo stock solution and learn many Shibori techniques, such as Arashi and Itjami Ashibori. We’ll discuss and trial ideas for personal projects, combining the indigo with with shibori, local plant dyes, eco-printing and resist printing.

16+ booking essential – HERE

Make up your own workshop day:

To prepare for a workshop:
All materials and recycled/organic fabrics are supplied for you, but it’s a good idea to bring your own preferred gloves, a basic sewing and art kit with things like scissors, pins, needle and thread, pencils, ruler, brushes, anything you like to use in your own work. Also some plastic bags to take wet work home in. You can bring your own pre-washed items to transform, such as fashion or small home goods like napkins, tee shirt, pillow case, a summer dress, linen trousers, scarves, a shopping bag or a table runner. The items don’t have to be white, in fact, some of the most interesting transformations happen on items originally with a print or other colour. Loved, gently used or stained items are also a great choice. Check the labels of the items to make sure they are made from natural fibres such as cotton, bamboo, hemp, wool, linen, viscose or silk.
You need to wear clothing that you do not mind getting a drip or two of dye on!

Who I teach...
ColourField owner Catherine works with all who want to learn about natural dyeing with local plant materials, practice low-impact surface decoration techniques, re-connect with nature and develop artistic eco-literacy. She always works with great enthusiasm and patience, with all ages and abilities, from amateur enthusiasts to professional teachers, artists and designers.
With over 20 years experience of teaching and lecturing on textile, surface pattern, print and general visual art techniques, Catherine is comfortable teaching in a variety of settings, from nursery and primary through to community projects, higher education and artist groups.
Community groups, after-school, holiday clubs, scout & guide organisations: DPIA drawing workshop

A parent of a participant on a Criw Celf project wrote to us after:

My son ..enjoyed the half term project with Cath Lewis enormously. She’s a great teacher who engaged and encouraged him to create some lovely work. He came home every evening talking about the activities of the group and what he’d learnt. He was inspired to work hard on his book, which he enjoyed making from recycled materials, and is 

already using his walnut ink for his GCSE work as well as making some of his own. 

He found the experience of working with artists inspiring and it was lovely for me to see him come home buzzing with ideas and he’s looking forward to putting more of his ideas into practice.

This project was a wonderful opportunity for him and I’m delighted that he was given that opportunity and was able to take advantage of it.

He’s looking forward to the next project / workshop!’

If you would like to book a group workshop I can travel to your venue or you can come to the workshop in Cardiff. I supply all equipment and materials for a workshop tailored to your ages, interests and needs.

Education and Art project clients include: