King ProteaKing Protea (Protea cynaroides) has the largest flower head of all the proteas. It is the National Flower of South Africa. This exotic plant has over 80 garden varieties, and is popular in both tropical and subtropical gardens worldwide. It is also prized as a cut flower. King Protea is also known as Giant Protea, Honeypot, and King Sugar Bush.This image is copyright and may not be used without specific authorization. Permission is explicitly denied for Pinterest.