The suburb Oranjezicht (which means "orange view" in Dutch) was named after the old fruit and vegetable farm that used to exist here in the 17- and 1800s. Several theories remain for why the farm was called Oranjezicht - a popular one being that it had many orange and lemon trees, which (when in season) must have given the view from the homestead an orange hue.
However, the theory that I favour is that it got its name from the fifth bastion of the Castle of Good Hope, called "Oranje", which on a clear day would have been visible from the farm. This bastion in fact points towards where the farm would have been situated. See the the purple line that I drew on this Google Map, from the Castle of Good Hope's Oranje bastion to the suburb Oranjezicht.
Of course, you could argue that the bastion got its name due to the orange and lemon trees growing on the slopes of Table Mountain. But you'd be wrong. :) The bastion actually took on the name of the Dutch prince of Orange, Prins Willem van Oranje.
I took this photo in the opposite direction from the one in my previous post; that dark patch with cloud above is Table Mountain, so at this point I had my back to the Castle of Good Hope, and the bastion Oranje.