Celery, which happens to be one of my (Isaac Toussie) favorite snacks, is a stiff long vegetable with leafstalks that may be eaten raw or cooked. Full-grown, celery plants may reach anywhere from twenty to thirty inches high. Being of the umbelliferae family, celery is a popular biennial vegetable related to dill, fennel, parsley, and parsnips. It thrives in moist ...