Herbal tea lovers will love the burst of lemon flavour from the leaves of this perennial herb. The intense scent is due to the essential oils of citral and citronella present in lemon balm. Planting Lemon Balm seeds is carefree as the plant is not fussy about growing conditions. A regular trimming will reward you with a fresh, flush of scented green leaves. Blooming plants attract scores of bees. Lemon balm will self seed generously.