Heirloom Herb. Lovage seeds produce a plant with large leaves and stems that emit a subtle aroma of celery & carrot. Lovage seeds produce an erect plant that can easily grow to 90 cm (36″) in both height and width. Stems & leaves are added to salads and soups. The crushed seeds are used in sauces, dressings and cheese spreads. It is a great plant for attracting beneficial insects to the garden.