I have a native patch or two in the forest here that a local friend found before I came, and he has been "babying" it along. He has "forbidden" me from clearing this little patch. It is not particularly fast, or easy to grow. It seems to want a special little niche or partial sun, and to grow as a partial climber - kind of over and over on top of itself, with another bush, shrub, or tree fern to "lean" on. Once its going, it does OK.
It is a revered plant here with the leis being very expensive, and used for special occasions. The local friend has taught be how to "pull" the last 3 feet or so of the new growth off the stems to make strands from which to "weave" the lei. As you probably know, it has a pleasant mild aroma.
We have harvested seed from a blackish berry - not many per plant - and they have sprouted without too much trouble. Where I live is cooler, but still a lot warmer than SoCal, with temps only to the low 50s in winter. So while it doesn't require true tropical temps, no telling if SoCal is a go. But greenhouse or hot house for sure, but difficult to provide the total "package."
One last thing, there are several variations with slight leaf shape differences and scents as well.