In addition to written and archaeological sources, those iconographic, represented by frescoes and mosaics, belong to the essential resources studying Roman gardens. On the vast territory of the Roman province North Africa, houses with gardens, which mosaics help to shape an overall view of Roman gardens and their differences in consideration to the local dry climate, are preserved.
These mosaics reflect many alterations in art from the second to the fourth centuries AD and suggest new methodological approaches in composition which thus allows greater scope to represent the old and new motives. In the Roman province Gallia Narbonensis the wall frescoes refer to a continuity of a Roman garden depiction in pompeian style.