I know of a couple of women who are successful (on a small scale) selling things out of the ground. No pots, hardy perennials only.
I hope I've inspired you!
Another thought.. because my growing season is so short.. can this be used to my advantage, for example, the season for things tends to be long gone elsewhere.. when things start happening in my area. An example, lilacs bloomed nearly a full month behind areas in Vancouver, Portland, SE Idaho. Same with many other things. I'm thinking that this could be used to my advantage as it could extend the availability of some seasonal foods and flowering plants.
Just all thoughts that keep rattling around in my head and I need to figure out how to use them!