Pick of the Park - Clerodendrum thomsoniae x speciosum

 It is a weak vine and in the park I have planted it against a small tree.  It loves the direct sun, though it can stand partial shade in most cases.  This form is a cross between Clerodendrum thomsoniae (Bleeding heart) and clerodendrum splendens.
It is frequented by butterflies and the inflorescences can be used as cut flowers

Clerodendrum thomsoniae x speciosum