For the dedicated gardener anywhere, the likely spot to plant something and anything is a container.
It is not necessary to have an acre of land to have a garden. You can have a garden in a flowerpot.
For millions of people, even a small plot of land is not available. There are those who live in apartments, people who live on houseboats, people whose occupations keep them on the road in campers or mobile homes, so container gardening is the perfect answer.
As a matter of fact, the size of our gardens in general is shrinking.