I have one Frankenstein tomato, a Juliet, and it's the only thing producing anything in my garden after we've had this horrible months-long run of 90+ temps. (Looking at 98 degrees tomorrow, 10/3/2019, no rain in sight.) I've neglected this thing horribly this summer, and it's still putting out and ripening more tomatoes than I've ever seen in one place in my LIFE! Too bad they aren't slicers.... I should not complain!
Normally, I'd be planning to be planting perennials right now, but it's just way too hot and dry.
Location: Zone 7b/8a Temperate Humid Subtropical, Eastern NC, US