Situation: Just north of the 49th parallel, in southern British Columbia, Canada. Growing season tends to be 150-165 days outdoors. The daylight hours are somewhat shortish in the mid spring and late fall. We have a sunheated greenhouse (extends the shoulder seasons of spring and fall).

Tomato variety: We have lots of gardening experience, but all outdoors. This year (first year with our greenhouse) we were happy with the size and flavor of "Black Krim" tomatoes - good size, round, deep red color, low-acidic taste. We bought them as seedlings from a local nursery. Three problems: 1) they were not indeterminate varieties, and while growing them in the greenhouse helped the plants to grow tall, we could have managed a longer vine (per plant). 2) the production of flowers (hence, fruit) was not at all remarkable... fewer tomatoes than we expected. 3) the larger, ripened fruits tended to remain "green shouldered" (stem ends didn't ripen so well).

Can you recommend on the basis of your experience a tomato that does well in northern greenhouse situations? That produces prolifically on an indeterminate variety plant? And that is low-acid in flavor?

For 30 years we were growing bush varieties like Beefsteak up against the south wall of our house. Nearly three years ago I built a deck along that side, hence eliminating the old tomato-growing site (where light and warmth had been reflected from the wall). We tried growing the bush varieties in a sunny area in one of our veggie gardening plots, but the production was not that remarkable. That's why we put up the greenhouse this past spring.

Given our experience growing the Black Krim bush variety in the GH this year, I'd say we'd be better off growing a vine variety (indeterminate) - I feel there'd be enough light for that in our GH. So I'm now inquiring about GH varieties of tomatoes.

I do prefer personal recommendations in a situation where dialogue is possible. The seed catalogues strike me too much as advertising - plus many varieties come on the scene as fads, and a couple years later hardly anyone is growing them because they didn't work out so well as expected.