My friend Kelley owns Ceallach Dyes. She uses a sustainable dying process for her yarns, and I would encourage you to take a look at her site and learn more about the process. I had the pleasure of helping her in her booth at Maker Faire this year, which was a blast. I brought this project with me to show off her sock yarn.
The colorway is Irises. I wanted to use a simple pattern, so it wouldn't compete with the yarn. The pattern is from Rosemary Waits and can be found here. I knit these on Size 0 needles, so they took for-ev-er! (or two weeks)