A green wall, also referred to as a vertical garden, is a vertical structure partially or fully planted with vegetation, designed to absorb air pollutants, act as a sound barrier, and provide aesthetic value. A green wall can be a living wall or a green facade. A green facade usually features climbing vegetation planted at ground level, whereas a living wall has a growing medium throughout the wall design.
- Compatible with private and public buildings and other public infrastructure
- Can be introduced during the initial design process or as a retrofit to an existing structure through a trellis system, a cable/rope wire system, or pre-grown panels
- Watering may be required during initial growth of vegetation
- Replacing existing plants as needed
- Inspecting irrigation and drainage system to prevent water overflow
- Should consider installing an automated drip-irrigation system for watering during dry season
- May require pruning in the fall and spring
- Installation costs vary depending on the system type, support structure needed, building location, design complexity, availability of materials and plants used
- A living wall will often cost more than a green façade
- Green Roofs and Walls Presentation: Green Roofs for Healthy Cities
- Introduction to Green Walls Technology, Benefits & Design: Green Roofs for Healthy Cities
- A Guide to Green Roofs, Walls and Facades in Australia: The State of Victoria, Australia
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