In the case of the two plants you mentioned, Pittosporum tobira and Philadelphus lewisii, each has flowers that are reminiscent of orange blossoms, hence the common name mock orange, meaning not a ...

Japanese cheesewood, mock orange (Pittosporum tobira). This evergreen shrub, native to Japan and China, grows to 30 feet, with white flowers at the end of its branches.

But be careful not to mistake Pittosporum tobira for it. For some odd reason, that plant is also called “mock orange” by West Coast growers, even though it’s not at all related, either by ...

Japanese cheesewood, mock orange (Pittosporum tobira). This evergreen shrub, native to Japan and China, grows to 30 feet, with white flowers at the end of its branches.