I’ve now finished all three:
The Potato Factory (1995)
Tommo & Hawk (1997)
Solomon’s Song (1999)
Quite good.
“This is the story of two families – branches of the Solomons – transported to an alien land, both of whom eventually grow rich and powerful but who, through three generations, never for one moment relinquish their hatred for each other.
It is also the story of our country from the beginning until we came of age as a nation. …

Born in South Africa, the trilogy is Courtenay’s “love letter to his adopted homeland”.
The author died in 2012.
