The genus Carissa consists of evergreen shrubs and trees, with handsome, glossy foliage and fragrant, starry-white, jasmine-like flowers. Ornamental and edible, scarlet to crimson oval fruits are produced after flowering. Carissas are attractive, ornamental shrubs and make excellent hedges.

The Natal Plum is a fast-growing, ornamental shrub that is wind resistant and can grow in coastal areas. It usually forms a dense thorny shrub but it can grow into a small tree up to 4 m high. The large, oval red fruit are edible and is rich in Vitamin C, magnesium and phosphorus. It flowers from spring to midsummer. The shrub makes an excellent bonsai and in the garden it makes a good hedge. The fruits can be eaten raw or made into delicious jams or jellies. This ornamental shrub attracts birds and butterflies to the garden.