Celery is a plant of Umbelliferae family, commonly used as a vegetable. It can grows up to 1 m (3.3 ft) tall, its leaves are pinnate to bipinnate, and its flowers are creamy-white and in compound umbels. Its crop uses to have an extremely uniform growth, so it is harvested only once.
In cooking, in can be used raw, in salads, or cooked, to make mirepoix, or stock and soups. There are also recipes to make calery soup and celery risotto. It is usually bought and stored in the fridge, but some people prefer to cultivate it at home, so that they have it within reach any moment.
Fun fact: in the past, Celery celery was grown above all for its seeds, used in pills for relieving pain.