Spathodea campanulata / african tulip tree

Do you see the golden-yellow form growing there?

Yes, I have seen them Delonix1, but very seldom, they are not as popular as the red ones.

Yes, the red ones are definitely more common; however, recently I've been seeing so many more of the golden-yellow variety. I think because it doesn't grow as large and tall as the red one.

That could be a good reason for growing them because the red ones can be monsters.

Yes, the red species can grow to about 60' (18 m) tall here in San Diego's subtropical climate (generally they're maintained smaller). In the tropics they grow to more than 80' (25 m) tall.