Hey there farmer!
There isn't currently a way to restart your game. We're toying with the idea of implementing an option for this in the future, but this isn't something available in the game at the moment.
With that said, if you've hit a roadblock and feel that there's some reason you can't continue playing, we're happy to do whatever we can to help you. Please contact us and we'd be happy to work with you to solve whatever might be feeling like a road block.
Remember, though: there is no losing in Pot Farm: Grass Roots! There are always ways to earn more coins and Pot Bucks, complete jobs on your job board, and harvest plants.
We can reset your farm back to Level 1 by request, but keep in mind you'll lose all of your progress, including any Slackers, Gizmos, or achievements you've earned! If you'd like for us to reset your game, submit a request so we can help you out!