Mk Neal wrote:I am just a bit north of original poster in Chicago, and get a few volunteer tomatoes every year either from seeds in compost or from fallen fruit. The winter frost does not seem to matter, even last year's polar vortex. The only downside I see to overwintering is that the plants get a later start than they would from transplants. The volunteer plants usually only yield a few tomatoes before cold sets in. So you would have a later, smaller crop of tomatoes.