Here in central MN my bush Early Girl has a couple flowers that are just opening, and my other unknown apparently bush indeterminate 'Tomato' variety (lesson to me, I won't be buying plants at a home improvement store again! I wanted a regular EG, not the bush variety, and this other plant appears to be some kind of brand new bush hybrid . . . not what I wanted at all! They didn't even give it a name, it comes from Bonnie, and they just called it 'Tomato') is producing flowers that are still green.
Three on each plant, so far, even though the plants are but a bare 12" tall. I worry about the size of the future tomatoes, if the tomatoes are in proportion at all, they'll be no bigger than golf balls . . .
And if they're typically sized, gravity will mean that my plants will turn into groundcover . . .
Next year, I order plants from a proper nursery!