I am planning on canning salsa this year. I did 70+ quarts a few years ago and we have run out. For that I plant over 20 roma tomatoes, dozen bell pepper plants and 30+ onions. Thinking of doing a hot pepper to spice it up a bit. I also plant a few early girl and cherry for eating. A few sweet pea pods and lemon cucumbers. I have them and about 40 starts of different flowers all in starters in my window. I have a small garden. Would do TONS more if I had the space. I focus on what I plan to can each year and plant accordingly. Last year was pickles so cukes and dill was the big crop.
DD planted pumpkins and cucumbers in her flower beds and they looked great. Nice big plants. She doesn't have many flowers and uses the space for veggies. We kind of share what we plant so we have more canning ingredients.
I have seen many veggies planted in flower beds and I think it is a great idea. I was considering pulling out some of my roses and planting blackberries and grapes in their place, but I am now planning on moving into the country in a year or so and then I can do all that there.
I would go to your local nursery (not a big box store) and ask about the blueberries. They will have an idea on what the local soil is like and can give you suggestions on how to help the plants get the nutrients they need. A good dose of proper compost and nutrients will help give you great blueberries.
44 F 5'5