rjs55555,
I grew one called "Red Dwarf" on my windowsill for the late winter, what a beautiful little plant. It produces a red cherry tomato, quite nice, sweet when ripe which is pretty amazing on a window here with little sunshine and no supplementary light - granted, it was lengthening days already when I potted up. The fruit quality was really to my liking compared to many of the 'early reds' I grew in the greenhouse last year. I was also really impressed with a tomato growth habit so well suited to indoors, I suddenly understand the interest in microdwarves and the real prospect of some great windowsill tomatoes. Dwarf foliage is beautiful, and they don't flop against the window like regular tomatoes - the source of much indoor disease is this contact with the window and condensation there on a cold day or night... rugose leaves stay clean.
On a personal quest myself for tomatoes that produce barrels of great fruit in the cold and dark of summer..
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Best of luck with your project, keep us posted.