The scientific name of plumbago used for ground cover is Ceratostigma plumbaginoides. There is a similar species, called Chinese plumbago (Ceratostigma willmottianum). The two plants look ...
Another species you may not know as well is the hardy or dwarf plumbago (Ceratostigma plumbaginoides) which has outstanding azure blue flowers and only grows to a height of 8 inches. As a ground ...