Popular Perennial is a term used to describe plants that are popular and come back year after year. Phlox is one such plant, which is a genus of 67 species of perennial and annual plants in the family Polemoniaceae. It is native to North America and is known for its colorful flowers, which can be found in shades of pink, purple, white, and blue. Phlox is often used in gardens and landscaping, and is a popular choice for gardeners looking for a low-maintenance plant.