Hanging Basket Column

#1
I was looking to hang pots in my balcony so far the place is very small that making to utilize as much as I can. I have seen many gardeners who hang on walls, roofs and balconies. I just want to know what can be grown leaving flowers?
 

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#3
I have edited the post and attached photos too. Hanging baskets means just hanging to something, but my intention was to grow vegetables instead of flowers that is what my plan.