Osteospermum belong to the daisy family and originate from Southern Africa, hence their common name - Cape Daisy or African Daisy.
Osteospermum thrive when grown in a sunny aspect, so always plant them in a border that has full sun or partial sun and preferably in a warm sheltered area.
Water the plants regularly especially during their first season as they do not like to dry out and feed them throughout the summer too to help promote flowering.
Deadhead the faded flowers to prolong the flowering season and remove most of the stem too to keep the plant looking neat and tidy.
Osteospermum respond well to pruning so cut them back either in early spring or in the autumn.
Although many Osteospermum are listed as annuals, they are half-hardy perennials. This is because they are not entirely hardy and will not probably survive a long series of winter frosts. But they can be propagated by taking cuttings in the autumn or you could try over-wintering them in a frost-free spot.