Welcome, Riette.
Dracaena aletriformis is a good match.
http://www.africanbulbs.com/pa...
It would help if you can say from which area the plant is in South Africa, there's an enormous number of plants there which are not found elsewhere.
It might also help if you can say which time of year it was in flower, there are winter and summer rainfall areas.
Nice plant!
There is an entry for this here, but there are no photos. It would be great if you could add yours!
Large-leaved Dragon Tree (Dracaena aletriformis)
