For ease of maintenance， it is advisable to have a built-in irrigation system and a good drainage system nearby. Vertical gardens generally require self-watering irrigation systems， as manual 5）hosing will result in water simply running into the ground. 6）Hydroponic watering systems can also be installed to keep plants fed and fresh.
Installing a vertical garden inside is a great way to connect an interior space with nature. Interior greenery requires a little more attention as adequate lighting and ventilation may need to be installed. The wall and surrounding areas should also be waterproofed and actively kept dry.
Commercially， plants are being invited into offices， restaurants and high-end hotels. “With most large offices having few windows and little natural light， insightful office managers often use plants to bring freshness and colour to the office environment， but the benefits go further than this. “Research strongly suggests that plants can result in improved 7）well-being among staff， increased productivity and improved air quality，” said UK psychologist Dr Craig Knight.
Covering a building wall can keep the wall 8）insulated， alleviate pollution and provides a shield to the building materials from elements like the sun.
愈來愈多的狹小城市空間正將花園景觀建造於地麵以外的地方，把綠色植物種植在圍牆和柵欄上。
這種建造“垂直花園”的新潮流，使得公寓、辦公室和餐廳煥然一新，令怡人的綠色植物得以在狹小的空間裏繁茂生長。
垂直花園，也叫“生態牆”或是“綠色牆”，給住宅和商業空間帶來了實用和審美價值。除了其景觀效益之外，花卉和綠色植物還能夠改善空氣質量和促進人體健康。
這種可持續的建築形式也成為“親生命性假說”的力證，這種學說認為人類和生態環境之間有著內在的聯係。
蘇珊·麥考伊來自緊貼潮流的美國公司——花園傳媒集團，她說，新生代的園藝大師都是由具有環境意識的X世代和Y世代組成的，他們相信植物的力量，認為植物“對於我們的生活來說，將不再是一種奢侈，而是必需品”。
植物可以種植在建築物的邊上，在柵欄或者是圍牆的外圍和裏麵。如果種植得當，垂直花園將會成為顯著的設計特征，甚至會成為牆藝中的優選方案。
用來種植垂直花園的圍牆和柵欄在結構上必須足夠牢固，因為它們一般會設計成永久性結構。有人建議由精通工程、設計、建築條例、排水和園藝的專業人士共同來建造垂直花園。
從設計的角度來講，一些機構提供可以附掛牆身的植物飾板，或者將植物種植在裝飾性容器中，再以網格形式排列置於牆身。園藝設施中植物的選擇則應該依據所在位置和養護需求來定奪。