After an overnight of soaking and then a good hard boil this morning on the stove, the dye was ready for my yarn. I used alum as a pre mordant and then let the yarn simmer for about an hour. This is what came of todays work:
Yellow: Tansy flowers
Green: Tansy leaves and stems (I added a rusty railroad spike at the end to make it really green!) Brown: Acorn tops
Subtle, harmonious color, just as in nature.