Early this summer I dyed some Shetland wool tops with nettles from the garden. I have learnt by this experience and consequent advice from more experienced dyers that if you put combed wool tops in the dye bath they felt a bit. Oops!
Fortunately this was an inconvenience rather than a disaster. I had to tease the wool apart with my fingers, then I used hand carders to get the wool ready to spin.
I'm very pleased with this yarn. You can probably tell it is not the best, most evenly spun yarn, but it's not too bad and certainly good enough for it's intended use in a knitted hat to wear for gardening in the winter. I'm thinking of using some other natural dyed yarn colours and natural black Shetland for contrast.
I mixed the two colours on the carders, they aren't totally blended as I wanted a marled yarn. rather than a blended shade. The mordant in the original dye bath, to get the yellow, was alum (10%) and cream of tartar (8%). Then, after removing half the wool I added a pinch of iron to modify the colour and give green.
I wish I'd had more time for using natural dyes this summer, but summer was gone before the sun came out this year and many garden things did not get done.