With its strongly perfumed flowers & old-fashioned upright habit, this is one of the easiest traditional cottage garden plants to grow. Long flowering Phlox-like white flowers bloom June through September. To 36” tall x 18” wide. Even if you haven’t the space for massing it in your garden, you should at least have some plants as even a few cut flowers will scent an entire room. Prolific self-seeder.