a container is a raised bed. it doesnt matter if it is square or round. it doesnt
matter if it is 18" or 24" or 36" deep.
the only difference is size the depth to the kind of plant, dont put a big tree in an
18"
ALL containers need an irrigation system because of course there are holes for
drainage and they will dry out faster than regular beds. and that doesnt differ if
it is on concrete or not. Ingrid

"Gideon" wrote:
But you didn't really address the original poster's questions.
I saw no raised beds sitting on concrete in your photos. And
I read no commentary or caveats regarding the similarities or
differences between the two styles of gardening.




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