Clematis Paniculata Home › Forums › Flower-Garden Questions › Annuals and Perennials › Clematis Paniculata This topic contains 0 replies, has 1 voice, and was last updated by Anonymous 8 years, 7 months ago. Viewing 1 post (of 1 total) Author Posts August 18, 2008 at 5:21 pm #28374 Anonymous I think Clematis Paniculata blooms in the Fall. Wait a few more weeks. Also, it needs sun to bloom successfully. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.