Lemon balm (Melissa officinalis) also known as balm, common balm, or balm mint, is a perennial herbaceous plant in the mint family Lamiaceae and native to south-central Europe, the Mediterranean Basin, Iran, and Central Asia, but now naturalized in the Americas and elsewhere.
It grows to a maximum height of 70–150 cm (28–59 in). The leaves have a mild lemon scent similar to mint. During summer, small white flowers full of nectar appear. Lemon balm seeds require light and at least 20 °C (70 °F) to germinate.
The plant is used to attract bees to make honey. It is also grown and sold as an ornamental plant. The essential oil is used as a perfume ingredient, but the plant has other culinary and medicinal uses. Lemon balm is also used in some toothpastes.