Thanks everyone for your nice comments & thumbs.
Sorry I was not here earlier.
This is an outstanding plant!
Not really a vine with tendrils that grab onto things, but does send out very long shoots that will easily start
a new plant where ever they touch the ground.
No pests or diseases at all. No care except to prune to keep to a
manageable size. Blooms freely. Doesn't go dormant.
I had no idea it would get so large
when I planted it, but now covers
a large boulder, and has started new plants 30ft away. Good to share
with neighbors.....just let it go over the fence.
But not difficult to keep in check, and the blooms attract hummers.
Since it is so gregarious, it grows through other plants,
e.g. a lemon, aloes, Angels Trumpet, African Tulip, &
Leucospermum, but all get along fine.