Johannesburg's rooftop farmer
Media playback is unsupported on your device
Video

Johannesburg's rooftop farmer

Rooftop hydroponics is part of a new "urban agriculture initiative" taking place in the South African city of Johannesburg. This farming - which uses water rather than soils to grow plants - is proving popular among green entrepreneurs, as Jessica David Preyser discovers.

  • 04 May 2018
Go to next video: 'We're farming in a shipping container'