I am fascinated by historic villages and take every opportunity to visit them so recently we went on our annual trip to Upper Canada Village. I enjoyed a day of strolling through old buildings that I have been to many, many times but still enjoy. In one of the buildings this caught my eye:
These skeins of wool had been spun and dyed in the village. In fact, while we were visiting, an interpreter was preparing another dye bath. Behind the house, in a large cast iron pot over a fire, she was boiling some logwood . Eventually my brain kicked in and I thought ‘Hey, she’s using a cast iron pot. Iron. Isn’t iron used as a mordant? Couldn’t the pot change the colour of the dye bath?’ This sounded like a science experiment to me.
Since Mullein is quite plentiful right now and I had read somewhere that it could be used as a dye it seemed like the obvious choice for my plant material.
I put 300 grams of chopped plant material – stalks, leaves and flower – in a cast iron pot with 16 cups of water. I put another 300 grams from the same plants into a stainless steel pot with 16 cups of water. I brought both pots to a boil, let them simmer for about one hour then let them steep for two hours. I drained off the plant material and was left with two dye baths that were quite different from each other:
The dye bath on the left was from the stainless steel pot and the one on the right was from the cast iron pot. Next came the dying process. I took a skein of Briggs & Little 100% wool that I had pre-mordanted in Alum and Cream of Tartar and divided it in two. I put a skein in each dye bath, which remained in their respective pots, and brought them to a boil. I turned off the heat and let them sit in the dye bath for about eight hours. I rinsed and dried them and was left with this:
The pale green skein on the left was dyed in the cast iron pot and the pale yellow one on the right was done in stainless steel. Since, I wanted a deeper colour I repeated the entire process using 250 grams of plant material in each pot. I re-dyed the wool with this result:
The yellow is the stainless steel pot and the green is the cast iron pot. So there you have it. Two different colours produced by using different pots. Of course now I am wondering what would happen with a different plant material. Goldenrod is about to bloom.




















