Carissa macrocarpa
Natal plum or Kei apple or large Num-num.
Shiny, deep green leaves and snowy white flowers, evergreen shrub flowering for months. Round, crimson edible fruit appears in summer and autumn at the same time as the flowers. The fruit is made into pies, jams, jellies, and sauces and is a traditional food plant in Africa.
Carissa macrocarpa is propagated EITHER from seed which germinate two to four weeks after sowing but seedlings grow slowly at first but can bear fruit after 2 years. OR by notching young branchlets by cutting them halfway through. Then they are bent downwards and allowed to hang limply. After the young branchlets have built a callus, in approximately two months, the cutting has to be removed from the parent and planted in sand under moderate shade. Roots form within one month.
Useful as a hedging plant because it is prickly. Fruit grows at the top of the bush.