Melissa officinalis. Plant lemon balm seeds and rub the light green leaves for a sudden hit of lemon scent. Use in bouquets to lemon scent a room or brew an invigorating medicinal tea. Lemon Balm seeds produce a herbaceous perennial self-sows and bees love it. Plants grow vigorously so keep self-sown seedlings thinned out. The plants are deer resistant, so a useful filler plant for coastal areas. Chop back the plants by two thirds once the flowers have faded to prevent self sowing and to encourage the growth of new leaves. This plant belongs in every organic herb garden and has been cultivated for centuries as a medicinal plant.