Matt Kerske visits a farm in Robertson County, TN that is a testing ground for growing indigo plant varieties. Sarah Bellos of Stony Creek Colors shares what she has learned from the company's agriculture research trials, and her hopes of those natural dye plants ultimately replacing 3% of synthetic dye usage in the fashion industry. Stony Creek Colors can boast having the most acreage devoted to growing indigo in the US, and it is all in Tennessee. To WATCH full episodes, visit http://www.volunteergardener.org