Deadhead the plant periodically throughout the blooming season. Not only does this encourage the gazania to produce new blooms, but it makes it easier to prune the plant later on. Gazania flowers have a tendency to get rather spiky when they dry up, making it painful if they poke your fingers.
Prune the gazania in late fall. Snip off dead leaves and stems and any flowers left from the previous season. Bag and remove the pruning debris from the bed.
Divide a large gazania plant by digging it up and driving a shovel through the root ball. Replant both sections quickly to avoid having the roots dry out. Divide the plant in fall, every three to five years.