(species Allium schoenoprasum), small, hardy perennial plant of the lily family (Liliaceae) related to the onion. Its small, white, elongated bulbs and thin, tubular leaves grow in clumps. Dense, attractive, spherical umbels of bluish or lilac flowers rise above the foliage; they characteristically produce only a few seeds. Chives may be propagated by planting seeds but are cultivated more commonly by dividing the clumps and planting the tiny bulbs. A flowerpot of chives can be kept in a sunny window for a continuous supply of leaves, which may be cut off at earth level and used for seasoning foods, particularly eggs, soups, salads, and vegetables.