Interesting YouTube....I do not know about earning 6 figures, but he has interesting mostly no till gardening practices that could be used in someone's garden!
Sign in 6:47 / 20:24 Epic Gardening....."He Farms 35 Hours a Week By Himself and Makes 6 Figures"
From the palm tree in the back ground is suspect he is California so he probably has 4 growing seasons. He probably also has a good farm to table marketplace available to him. (Larger city somewhere nearby.)
If I were younger and more ambitious... ;)