B.Z.
We have a garden and grow mostly stuff for salsa, tomatoes and lots of kinds of peppers. We also plant cucumbers. All of these have done very well and I am also in MN. We did not have good luck with watermelons or onions. Lettuce grows like crazy. I have not tried broccoli but my daughter did in pots and it grew well. You will get stuff, just keep it watered and feed it once in awhile. Enjoy it, it is really great fun watching how many vegetables you get from very few plants. My grandchildren eat the cherry tomatoes as if they are candy.