And now for some more trees that can make it in areas of southern California..
Coral trees -
a favorite of my old neighborhood, planted in the 1940's in the median of the thoroughfare San Vicente Boulevard in Brentwood and Santa Monica, which used to be an old red car transport line. The trees are routinely gorgeous, natives of South Africa, but suffer in place in that median strip as their feet are too wet and they grow brittle and hollow in time, and can cause havoc thereby. Those are Erythrina caffras, the big one. There is a support fund for their care.. and replacement.
there are also other Erythrinas that grow in the area, also beautiful, but I don't know their ups and downs. Some expert in an LA Times article I saved back in the 90's (I'm purging my notebooks now, sigh) said that it was a great tree in the wrong place - they are in the dry climate they like, but when I was around, they were planted in watered grass and let grow large. They're are a lot of runners along that strip, not to mention automobiles. Most love them, including me, but wind can be a problem. I figure people will learn to plant them in better places re mature growth and dry conditions, or at least there's hope of that.
I like natives more and more, but even natives don't want to be all wet in a semi arid place.
Anyway, the flowers... on E. caffra -
not showing up - so another one or two: