Using compost from our own kitchen waste meant last year quite a few tomatoes self-germinated in the greenhouse. I potted a few plants up in late September, overwintered them in a conservatory and they are now well established large plants with plenty of flowers and one tomato forming. Going to plant them in the greenhouse next week and hoping for an early crop of tomatoes. May be worth doing the same again this year.
Yep I get self seeded ones too and sometimes, just sometimes the original plant makes it through the wintet in my grrenhose if the winter is mild. I found small tomatoes on te soil surface in the Spring whenI went in to start tidying and they were still edible, they were from Sunold foliage I pulled out of the pots in late Novemeber and keft in there. The plants were still growing when I pulled them out but I wanted to clean up a bit