What's the correct name for this raised tree bed? This one was designed only for the tree. And it's not inside a garden, not even in a park, but at the corner of the street. Searching on Google I can find mostly raised garden beds that contain a tree and the flowers planted around them.
And what's the name of the raised beds used in the parks or on the street? Most of my search results are gardening raised beds.
Here are similar structures in Madrid.One of them: