We're stumped again. I saw this in Yvonne's garden nestling against several other plants and admired it. She didn't know its name. So when I saw one at the garden centre yesterday and it was labelled Clerondendron, I bought it and looked forward to enlightening Yvonne.
Blow me, it's in none of the books, no information on the various plant identifying websites, nor Google......so, please, if anyone knows the name, let me know. Maybe Clerondendron is the Spanish name.
P.S. Thanks everyone for your replies. It is Clerodendrum Thomsonae.