Hydroponic rooftop gardens turn Cairo green | Blog

‘We make use of vertical hydroponic gardening, which consumes seventy percent less water and takes up less space’, Tarek explains. While these are important benefits in a country with huge shortages of water and fertile soil, they also make it possible for the families to produce cheap and healthy vegetables on a roof of limited size.
https://www.bluebiz.com/en/BizClubs/Club-Africa-News/Hydroponic-rooftop-gardens-turn-Cairo-green