This is the first time I have ever grown in a greenhouse, so everything was trial and error this year. I grew peas, yellow beans, lettuce, radishes, carrots, peppers, cabbage, beets, onions
I installed my Sungrow 20 greenhouse on a 24-inch high wall to have more height and space inside. This allows it to have an elevated garden, using the full width of the greenhouse.
And if you are in a cold climate, you will have tomatoes! In all my years of living in Alaska, I have never had tomatoes bear fruit that would make it to ripeness.