Ancient Babylonia was in Mesopotamia, basically where modern-day Iraq is situated. The Tigris and Euphrates rivers run through the area; hence, it was a popular trade route. Mountains surround(ed) the plains. The rivers have many tributaries and the alluvial(sediment left behind after flooding) plains extremely fertile.
The weeping willow (The Babylon Willow) grew in Babylon, although probably originating in China. Exotic plants and trees were grown in the permanently irrigated gardens.
The Babylonians were an advanced people and, amongst many of the things they are famous for inventing and creating would be The Hanging Gardens of Babylon with an irrigation system and large-scale agriculture, although there is no physical evidence of the Gardens existence - they were written about extensively and are of course one of the Seven Wonders of the Ancient World.
These were a series of terraces cut into a 75 foot hill which were planted with beautiful trees and plants
They did develop
techniques to grow crops out of the fertile soils of the Tigris and Euphrates rivers.
The climate has(had) the biggest influence on the terrain; hot, dry summers and cold, wet winters. In Spring, much of the plains surrounding the rivers flooded as the ice from the mountains melted.Maize, wheat, sesame and barley were grown in abundance. The winds were quite predictable which also allowed the cultivation of the date palm.
The clay soil allowed the building of impressive structures. Houses could be built from clay bricks and clay was also used to make tablets for writing.
An essay or short story could take many themes; descriptively, the grass is always green and the region lush. Historically, there are many stories to tell and the imagination could run wild. Geographically, there are a few difficulties with actual species due to there being little 'real ' evidence about the Gardens but there is much existing evidence of the crops, etc.