Heirloom Herb Lavender seeds are a Mediterranean native that grow as a short, shrubby, multi-stemmed herb. Lavender seeds, once established, will do best in full sun with well-drained soil. As almost everyone knows, the flowers are dried and used in sachets and potpourris and the foliage, when disturbed, produces a wonderfully fragrant addition to any garden. The flowers provide a very important food source for bees.