Melissa officinalis, known as lemon balm, balm, common balm, or balm mint, is a perennial herbaceous plant in the mint family Lamiaceae, native to south-central Europe, North Africa, the Mediterranean region, and Central Asia.
Beautiful climber with truly bell-like deep velvet-blue flowers. The unusual buds open creamy green then change to rosy-violet and finally mature to a deep purple, from late Summer to early-mid Fall.