A green wall that is designed to be utilized in warmer climates, such as subtropical and tropical climates, by utilizing hexagonal shaped modules for housing soil and vegetation. These hexagonal shaped modules overlap one another on a vertical structure (e.g., trellis) in such a manner as to shade underneath modules. Furthermore, these hexagonal shaped modules are slanted downward to aid in soil volume and thermal reduction as well as to keep roots cool and maximize water availability. The green wall additionally includes a water delivery system integrated with the modules, where excess water from module saturation percolates to the module immediately below. In this manner, green walls can be successful in warmer climates with greater soil volume and thermal reduction.