From the eastern Mediterranean region. Ornamental herb with divided, glossy, deep green leaves to 2 feet long. Hollow stems rise from the foliage clumps in summer, crowned by sprays of flat-topped, greenish yellow flower clusters. Flowering plants may reach 6 feet tall under ideal conditions, but more usual size is 3 feet high and wide. Plant has a history of culinary uses: Seeds are valued for their celery flavor, leaves are added to salads and soups. Grow from seeds sown in place in fall; or start seeds in containers and transplant into garden in spring. You can also divide an established clump in early spring. Volunteer seedlings are another source of extra plants.