greater periwinkle References greater periwinkle plant Ask Anything Homework Help Also known as: Vinca major Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: periwinkleThe similar greater periwinkle (V. major), with purplish blue flowers, 2.5 to 5 cm across, native to continental Europe, has become naturalized in England. Read MoreThe similar greater periwinkle (V. major), with purplish blue flowers, 2.5 to 5 cm across, native to continental Europe, has become naturalized in England. Read More