- From Idaho.
- Began his musical career playing fiddle with his father Glen (guitar) in a group called The Grasshoppers. Honi Deaton (then Honi Glenn) was also in the band.
- Attended South Plains College in Levelland, Texas. After graduation, he moved to Nashville where he worked with Bobby Osborne, Chris Jones, Ronnie Bowman, Jim Hurst and backed award-winning country singer Lee Ann Womack. He also released a gospel album with his father Glen under the name Garrett Grass.
- Nicknames: “G-Grass” and “Freedom Cobra.”
- 2005, formed the Infamous Stringdusters.
- 2009, released solo project I Am a Stranger (Sugar Hill).
- 2014, released solo project The RV Sessions (no label), recorded in his RV.
- 2016, released instrumental album The RV Sessions II (Obsidian).
- 2020, released solo project Circles (Organic).
- 2022. released solo project River Wild (Organic).