I took class on natural dyeing in the beginning of the summer and I though I share some of the things I dyed there. All of the plants I used for the colouring where collected in the beginning of June. Beginning of the summer is a great time for plant dyeing because the colours are more vibrant the earlier it is in the plants growing season (at least here in the north). The yarns I used where all 100% wool yarns and they were mordanted with alum. Read about mordanting here.
I used about 280 g of heather and dyed 108 g of wool yarn. First I soaked the heather in water over night. Then I boiled the heather in the same water for two hours. After that I dyed the yarn by boiling it in the sifted colour liquid for one hour.
For these yarns I used the liquid dye that was made out of onion skins. This was the third time that liquid was used. I added 3 g of madder powder and 1 g of cream of tartar to the liquid and I dyed 40 g of yarn. This really brightens the orange colour up. Check out my post for dyeing with onion skins here.
I used 319 g of birch tree leaves and dyed 73 g of wool yarn. You do need a quite a lot of leaves for dyeing a lot of yarn. I boiled the leaves in water for two hours and then I dyed the yarn by boiling it in the sifted colour liquid for one hour. To get a bright green colour like this, it’s important to use early leaves from the beginning of the summer.
I think onion skinss are amazing. It’s incredible how much colour they have in them. I used about 115 grams of onion skins to dye these yarns. I got the skins for free from my local supermarket. I might have gotten couple of strange looks while I was going through the onion box, collecting loose onion shells but it was definitely worth it.
I let the onion shells soak in water for one day before boiling them (in the same water) for two hours. For dyeing I used a variation of old wool yarns that I had mordanted earlier with alum. After shifting the dye bath I boiled the wool yarn in the dye bath for one hour (I kept the temperature at about 80 °C). After that I rinsed the yarn. Onion tends to release a lot of excess colour so it’s good to add some vinegar to the last rinsing water. I used wool yarns that I had previously mordanted with alum.
The first yarns on the left are from the first dyeing batch (88 g). I saved the dyeing liquid and dyed another batch of yarn in it(100 g). This batch is the yellow one in the middle. After that I used the colour liquid for the third time but added one teaspoon of madder powder and half a teaspoon of cream of tartar. These are the yarns on the right(77 g).
I think this is a good example of how different yarn qualities effect the dyeing result. I used both white and grey coloured yarns. With white yarn I got lighter oranges and yellows and with grey yarn stronger oranges and greens. I used ordinary onion shells but I also want to try red onion shells. I hear you can get a beautiful green from them. Has anybody tried red onion skins?