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56605 Sitka Drive
Otis, OR 97368
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Natural Indigo and Tannins

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Print Workshop Info
Natural Indigo and Tannins
Rio Wrenn
Date and Time:
10:00am - 4:00pm
$215 plus $30 Materials Fee
Total Cost:
Minimum Age Level:
Skill Level:
Registration for this workshop is closed.
Registration for members begins
February 26, 2019
If you are a member, please sign in above. If you are not yet a member, you can purchase a membership
The open enrollment period begins on
March 12, 2019

Workshop registration opens for members on February 27.

Workshop Overview

In this intensive workshop, learn how to create a natural indigo vat with fructose. You will be guided through the process from leaf to extract as you explore the ancient process of the color blue. Make several samples of shades by multiple dipping and discover how introducing a tannin-based dye will create a multitude of blue-green shades. From here you will create patterns with iron and shibori techniques. Participants will take home their own starter vat for future experiments. There will also be a final piece to make with silk or cotton.

About the Instructor(s)

Rio has been developing processes and studying ancient techniques for the last 18 years. In this time she has created a diverse body of work that has informed her practice and eventually lead her to share these processes with others. The rituals of life are the basis of her work, and this ritual is shared as sacred space in workshops. and

Materials List: Students Bring


• 1 quart mason jar with lid

• Apron

• Any fabric pieces of cellulose or protein to dye

• Small skeins of yarn (this will be determined on how much dye is left in pots after samples and projects

are finished)

Materials List: Provided by Instructor(s)


• Nitrile gloves

• Indigo extract

• Fructose

• Lime

• Tannin (extract and harvested)

• Silk and cotton for samples and yardage

• Pens

• Paper handouts

• Shibori string

• Needles

• Clothespins

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