Margaret Joan Roberts (1937 – 4 Maachị 2017) bụburu Dibia Mkpọrọgwu na Mkpaakwụkwọ nke mba South Africa na onye dere akwụkwọ karịrị 40 gbasara ahịhịa na isiokwu ndị metụtara ya. Margaret Roberts wetara ahịhịa na South Africa ihe karịrị afọ 60 gara aga wee nye nkuzi gbasara uru mkpuru akwụkwọ na ibi ndụ ahụike, ebumnuche ya bụ 'Kụziere na kpate mmuo'. Margaret Roberts Herbal Center na De Wildt, North West Province bụ Margaret mepụtara ma kpọọ ya aha ya, nke a na-aga n'ihu na nwa ya nwanyị Sandy Roberts bụ onye ya na Margaret rụkọrọ ọrụ ruo afọ 32. Margaret agbazinyela aha ya n'ụdị ngwaahịa gụnyere usoro nri, ụlọ mposi, onyinye, ngwa kichin, ngwa akwụkwọ, akwa akwa, mkpụrụ na akwụkwọ. A maara Margaret Roberts Herbal Center dị ka otu n'ime ubi iri kacha elu na South Africa. A maara Margaret nke ọma maka Margaret Roberts lavenders nke ọ na-agafe ihe karịrị afọ 15 na nke dị na South Africa, nke a makwaara maka Ginger Rosemary, High Hopes Basil na Margaret Roberts Rose, ụdị ndị a niile bụ aha ya.