A green wall, also known as a living wall or vertical garden, is a wall covered with vegetation, often with a built-in irrigation and drainage system. These walls can be installed on the exterior or interior of buildings, providing environmental, aesthetic, and health benefits.

Types of Green walls:

• Living Walls – Plants are rooted in a vertical support system with automatic watering.
• Green Facades – Climbing plants grow on a structure attached to a building.
• Modular Green Walls – Pre-grown plant panels installed onto walls.
• Hydroponic Green Walls – Use nutrient-rich water instead of soil for plant growth.

Benefits

• Air Purification – Filters pollutants and improves air quality.
• Thermal Insulation – Reduces heat in summer and retains warmth in winter, lowering energy costs.
• Noise Reduction – Absorbs sound, reducing urban noise pollution.
• Biodiversity Support – Provides habitat for birds, insects, and pollinators.
• Aesthetic & Well-Being – Enhances urban landscapes and improves mental health.

Criticism or Limitations

• Maintenance Needs – Requires regular watering, pruning, and monitoring.
• High Initial Costs – Installation can be expensive, especially with irrigation systems.
• Structural Considerations – Requires strong walls to support plant weight and moisture.
• Plant Selection – Needs appropriate plants for climate, sun exposure, and maintenance levels.

Real-life examples in the EU

ARSINOE Case Studies