This is VGD's first vertical garden installation in South Africa, located in Rosebank Johannesburg. Given the richness of South Africa's flora it was an interesting opportunity to work with almost exclusively indigenous plants and we also did get a chance to see them in nature (see our blog for images from a visit through Drakensberg, KwaZulu-Natal, Eastern- and Western Cape). Additionally it was also possible to find a wide variety of indigenous plants at local nurseries.
At an elevation of 1700 meters, nights in Johannesburg can be cold, but frosts are not that frequent. It's categorized as a subtropical highland climate, as opposed to the botanically more diverse Cape Town area with its' mediterranean climate.
In particular we used several kinds of Agapanthus, these are strong plants that resists dry spells and grows so attached to the walls they can be difficult to remove. And flowers profusely.
The wall also has varieties of Chlorophytum comosum, Asparagus sprengeri and Plecanthrus, all common pot plants that we frequently use also for interior walls. For flowers there are Cyrtanthus, Pelargonium, Tulbaghia, ice plants (Aizoaceae), Clivia and more.