Celery is a green and crisp vegetable with Celery Root is an excellent source of antioxidants and beneficial enzymes, in addition to vitamins and minerals such as vitamin K, vitamin C, potassium, folate, and vitamin B6. Celery seed extracts have anti-hypertensive properties that help reduce high blood pressure edible leafstalks, leaves, and roots, and edible seed-like fruits that serve as a flavoring.buy it online fast delivery.