Celtis Africana (celtis africana): The white stinkwood (Celtis africana) is a deciduous tree in the family Cannabaceae. Its habit ranges from a tall tree in forest to a medium-sized tree in bushveld and open country, and a shrub on rocky soil. It occurs in Yemen and over large parts of Africa south of the Sahara. It is a common tree in the south and east of southern Africa. https://en.wikipedia.org/wiki/Celtis%20africana
Celtis africana There is no doubt that this is an excellent tree to use in a landscape, and it is a rewarding garden tree. It gives shade in summer, and is fast and easy to grow under a wide range of conditions.
Harpephyllum caffrum (Wild Plum) The Wild Plum is another very popular tree in Gauteng, being regularly used on sidewalks and in shopping centres. It tends to forms a very large, very wide, very dense crown,
Podocarpus-henkelii The Yellowwoods The Podocarpus is indigenous, evergreen, and very sturdy. It is a slower grower than most other species, but if you have the patience it will be a worthwhile addition to your garden.
Olea europaea subsp. africana (Wild Olive) The Wild Olive has become one of the most widely used trees in Gauteng's parks and gardens. It is a very common species throughout Southern African, and is very hardy and frost tolerant. Although it is regularly planted in small gardens, we would advise owners of small gardens not to do so. This species will become a very large tree in time, and years from now you (or perhaps the next home owner) may find yourself having to cut it down due to its…