Most farms now days are corporate farms and they suffer the same ups and downs as any corporation no matter what goods or services they sell.
Most rural and semi-rural, which was a good potion of America at the time of the great depression survived because they had truck gardens, and backyard chicken coops and farmers selling on the side of the road or even door to door.
My grandmother had a egg man in the early 60’s and also sold fresh garden vegetables in season.
The Germans have a good idea by traditionally setting aside some land near the cities, for individuals to have small gardens, which produce a lot of fresh food for their families.
This being said, if you look at a suburban area with front and back yards, you have a lot of premium land. And acting in cooperation to produce varied crops year around, they could go a long way in feeding not just their suburb, but even having extra food of limited varieties.