Dr Nortier also saw the vast commercial potential the tea held for the region .
In 1930 District Surgeon and botanist Dr Pieter Le Fras Nortier began conducting experiments with the cultivation of the rooibos plant .
Dr botanist also saw the vast commercial potential the tea held for the region .
In 1930 District Surgeon and botanist Dr Pieter Le Fras Nortier began conducting experiments with the cultivation of the rooibos plant .