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 yield a herbaceous perennial self-sows and bees love it. Plants grow vigorously so keep self-sown seedlings thinned out. Lemon balm is deer resistant, so a useful filler plant for coastal areas. Chop back lemon balm plants by two thirds once the flowers have faded to prevent self sowing and to encourage the growth of new leaves. Lemon balm belongs in every organic herb garden and has been cultivated for centuries as a medicinal plant.