I grow in containers as I live in an apartment. I do grow Brandywine(Sudduth)which has a DTM of about 85 days. I start seeds in late March for late May plant-out. Although I don't get a large harvest due to not-so-large containers, I do get ripe BWs. HTH

was hoping to see more on this. I need to learn a thing or two.

I don't see why we can't grow longer DTM tomato plants. Is it a problem of not enough heat at the end? There used to be alot of watermelon grown around here. Most of that is 80 to 90 day. That seed can't be planted until the soil is over 60.

I think it's matter of what your growing season is like. Here, it's short but hot, so I start early inside and try to keep the soil cooler in mid-summer(light colored pots, mulch). When I lived in the PNW, it was longer but cooler, so increasing heat for the plants was important, ie, hotcaps, raised beds, black mulch, etc. It depends on the hoops you're willing to jump through, I guess. People with their own garden areas build high tunnels, greenhouses, or any other method of extending the season or controlling the climate. Others just plant toms with DTMs compatible with their growing season. I'd suggest perusing the Far North forum and the Tomato forum search functions for more detailed info on methods and tomato varieties. HTH