When plant lovers see stands of vibrant purple flowers along roadsides or in gardens, phlox is usually their first guess. Unfortunately, it's easy to mistake phlox for a deceiving invasive weed ...

Fragrant creeping phlox ... She also suggests 'Scarlet Flame,' a quick-growing plant that's heat and humidity-tolerant. Spencer's choices are 'Pink Ridge,' 'Fran's Purple' and 'Sherwood Purple.' ...