Rooftop Garden

Question

How deep or big of container do I need for a vegetable garden?

Answer 1

If you are planting a vegetable garden in containers, most larger plants (tomatoes, peppers, etc) need about a 5 gallon bucket size container. These articles will help:
https://www.gardeningknowhow.com/special/containers/designing-your-container-vegetable-garden.htm
https://www.gardeningknowhow.com/edible/vegetables/vgen/quick-guide-to-container-vegetable-gardening.htm