The flowers come in many colors from white to deep purple, with single or multi-colored centers and petals that can be double, fringed, or spoon-shaped. A member of the daisy family (Asteraceae), osteospermum is a half-hardy perennial or subshrub most commonly grown as an annual.
If the plant is described as 'Hardy Perennial' it should stand up to average low winter temperatures and come up each year for several years. A 'Hardy Biennial' will build up a strong root and leaf system in its first year, survive the average winter and go on to flower, set seed and die off in its second year.
These plants are ones that flower reliably every year. Usually get bigger each time. The stems die back over winter, but the roots don't. Meaning the plant can regenerate the following year.. . . . .364011234618!]