Dividing creeping phlox? Home › Forums › Flower-Garden Questions › Annuals and Perennials › Dividing creeping phlox? This topic contains 0 replies, has 1 voice, and was last updated by Anonymous 7 years, 3 months ago. Viewing 1 post (of 1 total) Author Posts June 3, 2009 at 9:18 am #28852 Anonymous How do I divide creeping phlox? Do I did up the whole original plant, or just cut off sections that have spread? Does it root as it spreads? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.