Around Venice there are a lot of fences and a lot of vines on fences. Bougainvilliea reigns supreme as the local vine of choice, however with its thorny branches and the energy it takes to hack them back, we're thinking we prefer the trumpet vine:
In the Trumpet Vine's favor: In southern California it grows easily, is resistant to mildew and has a beautiful shape. It can live in full sun in rich soil, cascading down a wall or fence with bright coral trumpet-shaped flowers. But working against it: it can get overgrown and act like a weed becoming invasive and territorial.
We still vote for it, since we had both a trumpet vine and a Bougainvilliea growing on the same fence and the trumpet vine was much easier to maintain. If you're into a trumpet vine keep in mind that you can grow one from a cutting.