If you’ve never had a garden and if you’ve never grown vegetables it not fair to take anything for granted. There are a lot of things you’ll need to learn and one of them is how much room some plants demand. Now, when you’re growing in containers and certainly if you use my hydroponic planter system, you can reduce the space that any plant will take up but some choices – frankly are beyond hope.

When you’re considering what to grow, a good place to learn about their needs is from seed catalogues and another – even better source – is from other gardeners, but there just never seems to be a master gardener handy when you want one!
Some plants like cucumbers, and tomatoes can be trained to a trellis and indeed so can some melons and squashes – but not all of them.

Pumpkins and watermelons for example, turned loose on your balcony would not only take it over completely- they could probably take possession of your neighbor’s balcony and your living room too. Corn is another example of a plant that’s entirely unsuitable for a balcony. For one thing it’s tall but you don’t grow it to a trellis which means that on your balcony the wind would easily break it but more to the point, you need to have a fairly large patch of corn growing to be assured that it will pollinate properly and therefore actually produce any corn.
As you’re making your list, keep the really large plants off.

Actually, for what it’s worth – here are the plants that I think are best suited to balcony vegetable gardens:
Beans, peas, some cucumbers, some sweet peppers, hot peppers, tomatoes, some eggplants, salad greens but not many cabbages and most annual herbs.

Asparagus and rhubarb are not suitable since they’re perennials.