Dye extracts strength
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Wild Colours - Exciting colours from Natural Dyes

Strength of Natural Dye Extracts

4 shades from sorghum natural dye extract

3 shades from persian berry natural dye extract

2 shades from logwood natural dye extract

sorghum dye extract

persian berry extract

logwood dye extract

I set up an experiment to check how much wool the different extracts dyed, and how soon they became exhausted. I placed 1 gram of dye extract in a coffee jar, dissolved the extract in warm water and then put the jar in a bain marie. I had previously prepared several dozen 10-metre hanks (about 6 grams each) of handspun Bluefaced Leicester wool, mordanted with alum and with cream of tartar. I placed one pre-soaked 10-metre hank in the jar, simmered it gently for 40 minutes, turned the heat off and left the hank in the dye bath overnight. The next morning I removed that hank and added another one. I repeated this process until the final hank came out a pale colour.


Most extracts produced a wide range of beautiful shades.
  • Buckthorn (Persian berries): produced 3 skeins, a bronze yellow, rich orange and pale warm yellow.
  • Chlorophyllin: I was very impressed with this exciting extract that produced a delightful range of greens, quite different from the range of greens that I get from overdyeing woad and weld. 1 gram of chlorophyllin dyed 4 skeins ranging from forest green to sea green.
  • Cochineal extract was strong enough to dye 5 skeins with colour variation from deep rose to pale pink using rain water. The water was almost clear at the end.
  • Coreopsis: produced a warm yellow straight away and was enough for two skeins.
  • Cutch: produced one medium warm brown skein and two pale brown skeins.
  • Fustic: produced 3 skeins, ranging from a very strong rich dark yellow to peachy yellow. Those colours are very distinctive from the yellows produced by weld, greenweed or coreopsis.
  • Gallnut (oak) is mainly used as a mordant, but it produced a pale beige colour, enough for 1 skein only.
  • Greenweed: like weld, it produced no colour until I added 1 gram of calcium carbonate. A strong extract, producing 4 skeins ranging from bronze-green yellow to primrose yellow.
  • Lac: the first skein was an exciting very dark burgundy red; enough for 4 skeins.
  • Logwood: 1 gram was enough to dye 7 skeins and even then the dye was not exhausted. The first skein was purplish black, however the exaust dye bath tended to produce very attractive dark and medium browns.
  • Madder: produced a vibrant colour (temperature kept below 60°C). Strong enough to dye 3-4 skeins – dark, medium, light and pale reds.
  • Pomegranate: a pale beige colour, enough for 1 skein only.
  • Sorghum: exciting very dark mauve colour, enough for 4 skeins.
  • Weld: produced no colour until I added 1 gram of calcium carbonate. Strong enough to dye two skeins, dark neon yellow and pale yellow.


A. Why use natural dye extracts
(opens a new page)

B. How to dye with natural dye extracts
(opens a new page)

C. Instructions for each extract
(opens a new page)

D. Painting & Printing with natural dye extracts
(coming soon)

E. Gum tragacanth for natural dyes extracts
(coming soon)

F. Soy milk for natural dyes extracts
(coming soon)


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Last updated on 02 October 2019
Website & photos by Mike Roberts ©2006-19 Wild Colours natural dyes