roof garden

A rooftop garden, also known as a green roof or landscaped rooftop, is a garden cultivated on top of a building. This practice has a long history, dating back to ancient Mesopotamia and Egypt, and was also present in ancient Rome and Renaissance Italy. Modern rooftop gardens became more prevalent in the 20th century, particularly in urban areas.1

These gardens offer significant environmental benefits, including lowering air temperature, providing insulation, and reducing a building's energy consumption. They help mitigate the urban heat island effect and can decrease greenhouse gas emissions and air pollutants. Rooftop gardens also improve stormwater management by absorbing and purifying rainwater.1

Challenges include managing soil depth to limit weight, which restricts plant size, and often requires plants to be in containers. Windy and sunny conditions can lead to drought, necessitating drought-tolerant plants like succulents. Despite these challenges, rooftop gardens are popular for their aesthetic appeal and environmental advantages.12