Doing research, many of the books/websites and more suggested a ratio of 2:1 of plant material to wool. I would definitely up it to 3:1 or even 4:1.
I started with:
5.4 ounces of lily of the valley (leaves and flower buds)
2.6 ounces of Perendale fleece (washed) mordanting in .5T alum and .5t CoT.
Leaves
were harvested at night and put into a 6 ounce crock
pot. Wool was soaked and entered into the dye bath several hours later. (It
took a long time to extract any sort of dye color.)
Added about two more ounces of leaves, and some color could eventually be seen, left the leaves in, and let it soak on low for a while, and then turned off and let cool.
It is definitely a pale, pale color, more like a tint. Worth trying again, and experimenting with.
One of the books talked about adding Glauber's salts and Tartaric acid to the dye bath. That's something to look into for next time.