The Probert Encyclopaedia of Nature

CELERY

Celery (Apium graveolens) is a biennial vegetable of the family Umbelliferae indigenous to the ditches and marshy places near the sea-coast in England and Ireland, and elsewhere in Europe, and long cultivated in gardens as a salad and culinary vegetable. There are two varieties in cultivation: red and white stalked, and of these many sub-varieties. Celery is commonly blanched by heaping up the soil about the plants.
Research Celery