I seemed to say this so frequently, but it is true I love this combination of white flower Plumbago zeylanica (Family Plumbaginaceae) and red flower Euphorbia geroldii (Family Euphorbiaceae).The common names for the former include White Plumbago, White Cape Leadwort and Skyflower and the latter Thornless Euphorbia.
The White Plumbago was planted first and is difficult to propagate. The mass of white flowers look so clean and pure. On the other hand, the Euphorbia was a later addition and it was propagated by stem-cuttings and was growing well in the nursery.
A link on the Plumbago zeylanica is below:
