So I'm doing this project in school, that I've been working on, with two friends, for a little less than a year about ecological fabrics. As part of the project we were going to sew COMPLETELY ecological clothing, and the only way to dye fabrics is to use plants, and tadaaah! Onions peals and birch leaves both have strong coloring, so that's what we used. The fabric we used was bought online from Nearsea Naturals in the US, and since we live in Sweden, we had to ship it by air. NOT GOOD!!! Getting sheep and weaving our own fabric was not really an option...
(We had to use silk since plant fibers are plants themselves, and don't get dyed by other plants...)
Anyhow; we did three baths: one with yellow onion peels, one with red onion peels, one with a combination of red and yellow, and one with birch leaves.
The first three turned out looking really alike, and the birch one didn't really catch any color...
(From top left: Yellow onions, red onions. Bottom left: Mix, birch.)
Here's the birch coloring in comparison to the original fabric. I'm thinking maybe we had too few leaves, or maybe they were too old.
I can't wait for fall the there are berries and beets to color with!
(I threw in some leftover yarn, and it picked up the color really well! I think wool is the best material to color with plants...)